SANTA CLARA, Calif. -- San Francisco 49ers offensive lineman Anthony Davis has retired from the NFL for the second time in 15 months, the team announced late Monday afternoon.Davis addressed his retirement in a tweet, writing:Davis returned to the 49ers just before the start of training camp after taking the 2015 season off to, as he said, allow my brain and body a chance to heal. Upon his return, Davis was unable to win back the starting right tackle job from Trent Brown and moved inside to right guard before the teams second preseason game against Denver.Heading into the regular season, Davis had seemingly won the starting right guard job, but coach Chip Kelly decided to go with Andrew Tiller at that spot before the season opener against the Los Angeles Rams. Davis missed a practice the Saturday before the opener amid reports he was again considering retirement, but Kelly and Davis called it a miscommunication that they went on to resolve.Davis ended up serving as the teams primary backup tackle and played three snaps late in the 28-0 win against the Rams. Then, just three days before the Niners Week 2 game against Carolina, Davis was diagnosed with a concussion that prevented him from traveling and playing in that game.Kelly said last week he didnt talk to Davis after he suffered the concussion because the team traveled to Carolina on Friday.I havent seen AD since Thursday, so well see where he is with it and whats going on, Kelly said then. And obviously, hell go into the league concussion protocol and well go through all the process there. Theres a system in place to make sure that hes not going to be put in harms way, so well see how that goes.Davis remained in that concussion protocol through last week and was again a pregame inactive for Sundays game in Seattle.The 49ers originally selected Davis with the 11th overall pick in the 2010 NFL draft. He quickly claimed the starting right tackle job and went on to appear in 72 games with 71 starts.Davis previously retired in June 2015 after an injury-plagued 2014 season in which he dealt with shoulder, knee, ankle and hamstring injuries in addition to a concussion that limited him to seven games.When Davis returned to the Niners in July, he earned positive marks from coaches and teammates for coming back more than 30 pounds lighter than hed been in the 2014 season. He said at the time that he didnt regret walking away for the 2015 season.I didnt miss it right away, Davis said in July. 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Nike NFL Jerseys China . -- The Bishops Gaiters are showing they belong among the countrys top varsity football teams. Four All-Stars, two MVPs, a whole new Splash Family in Golden State.Kevin Durants decision to join the Warriors on Monday sent tremors through the NBA, and players and executives throughout the league immediately started to contemplate how the newest super team would alter the landscape.Thats crazy!!!! KD in GSW???? Wizards center Marcin Gortat tweeted. (Are) they gonna score 200 points a game?The Warriors already were a super team before one of the leagues most unstoppable scorers decided to leave Oklahoma City for the Bay Area. Golden State won the championship in 2015, rolled to a regular-season record 73 victories last season and came within one game of back-to-back titles when they lost to the Cleveland Cavaliers Game 7 of the NBA Finals.Now they have added the player who nearly eliminated them a round earlier.Though not everyone is anointing them next years champions.Everyone is so hyped up on the matchup problems on the offensive end? They still gotta come down the other end, Pistons All-Star center Andre Drummond tweeted. Not a very big team.Durants decision immediately rekindled the discussion about stars leaving teams to chase a championship elsewhere. Durant spent his first nine seasons in Oklahoma City.While there, he helped lead the Thunder to the Western Conference finals four times and to the NBA Finals in 2012, where they lost to the Heat, another super team formed when LeBron James and Chris Bosh joined Dwyane Wade in Miami.Durant himself spoke out negatively about creating super teams when James made his decision in 2010.But after the Thunder could never get to the top of the mountain with Durant, Russell Westbrook and Serge Ibaka -- and even though they had the Warriors down 3-1 in the conference finals -- Durant opted to head west.If you cant beat um, join um, Clippers forward Paul Pierce tweeted to tweak Durant.When James left Cleveland for Miami, stars such as Michael Jordan, Charles Barkley and Magic Johnson were critical of the decision to join forces with players he had competed against.Theres no way, with hindsight, I wouldve ever called up Larry (Bird), called up Magic and said, `Hey, look, lets get together and play on one team, Jordan said in 2010. But thats ... things are different. I cant say thats a bad thing. Its an opportunity these kids have today. In all honesty, I was trying to beat those guys.Denver Nuggets forward Jusuf Nurkic was equally puzzled by Durants decision.Somebody beat you! And you go there... ? Nurkic tweeted. Superstar not doing that man.While Durant has never been too concerned by outside opinions, his decision may also have ramifications on the NBAs collective bargaining negotiations.During the last lockout, the owners pushed to make changes to the aagreement so that teams, especially those in smaller markets, would have a bigger advantage in retaining players.ddddddddddddCommissioner Adam Silver has said in the past that those changes were effective, but the influx of new money into the system this summer from the leagues new $24 billion television contract, and Stephen Currys bargain contract that was negotiated when he was struggling with ankle injuries, conspired to give the Warriors enough wiggle room to spend $54 million on Durant.The league and the players union can opt out of the current CBA this year, and both sides have been negotiating to try to avoid another work stoppage.One of the biggest talking points Silver has been making over the past six months is the leagues continued push for more parity.The intention wasnt that in this system that teams could sign, without going above the tax, that many max player contracts and that many All-Stars, Silver said during All-Star weekend in Toronto.So if you ask me from a league standpoint, we would prefer that our All-Stars be distributed around the league rather than having so many All-Stars in one market. But well see what happens this summer.The summer is here, and so are the Warriors, who still have work to do.The Heat went 2-2 in the finals during the James, Wade and Bosh era, including a loss to the underdog Dallas Mavericks in their first season together. When James went back to Cleveland to team up with Kevin Love and Kyrie Irving, the Cavaliers lost in the finals their first year before winning this season.And everyone remembers the Los Angeles Lakers falling short both in 2003-04 -- when Gary Payton and Karl Malone joined Kobe Bryant and Shaquille ONeal to chase a title -- and even more spectacularly in 2012-13 when Dwight Howard and Steve Nash came to town.This time appears to be different, with all four of Golden States All-Stars aged 28 or younger and squarely in their prime.Only problem theres only 1 ball, Jazz center Rudy Gobert tweeted.And only so much money, as odd as that sounds this summer.So the Warriors have agreed to trade Andrew Bogut and will likely have to jettison Harrison Barnes -- two important cogs for them the past two seasons -- and will rely on several minimum salary veterans to fill out the roster for depth.They will also face a crush of attention and many hoping they fail.Warriors forward Draymond Green no doubt understands this, and got straight to the point with Durant in his first message to him on Twitter:Block out the noise.---This story has been corrected to show that Durant helped the Thunder to four Western Conference finals. cheap falcons jerseys cheap ravens jerseys cheap bills jerseys cheap bears jerseys cheap bengals jerseys cheap cowboys jerseys cheap lions jerseys cheap texans jerseys cheap colts jerseys cheap jaguars jerseys cheap chiefs jerseys cheap rams jerseys cheap dolphins jerseys cheap vikings jerseys cheap saints jerseys cheap giants jerseys cheap jets jerseys cheap eagles jerseys cheap steelers jerseys cheap 49ers jerseys ' ' '