SANTA CLARA, Calif. -- San Francisco 49ers running back Carlos Hyde said he suffered an AC joint injury in his shoulder that may prevent him from playing Sunday against the New Orleans Saints.Hyde returned to practice this week after sustaining the injury in the second half of a loss to the Bills on Oct. 16.Its definitely gotten a lot better, Hyde said. I think if I just take it day by day, it will continue to get better.Hydes status will be determined closer to game time.Its really how much movement, how much range of motion does he have and then the assessment of what the doctors and the trainers say after tomorrow, after Friday and Saturdays training sessions, 49ers coach Chip Kelly said.Hyde is tied for third in the NFL with six rushing touchdowns despite missing the teams previous game against the Buccaneers. In his place, San Francisco tried out a trio of running backs, DuJuan Harris, Mike Davis and Shaun Draughn, who combined for 76 yards on 19 carries. Colin Kaepernick led the team with 84 yards rushing in the 34-17 loss.The 49ers have the fourth-ranked rushing attack, but have struggled with consistency on the ground.I think the running games been kind of hit and miss, left tackle Joe Staley said. Its those tiny things. Right now, everyone knows youre struggling. How do you remedy that? You just get back down to basics.Game notes CB Rashard Robinson (knee sprain) and LB Aaron Lynch (ankle) missed practice for the second straight day. ... Rookie CB Will Redmond could make his NFL debut Sunday after the 49ers opened his practice window before the bye week. He was placed on injured reserve to allow him more time to recover from an anterior cruciate ligament injury suffered while he was at Mississippi State.---For more NFL coverage: www.pro32.ap.org and http://twitter.com/AP-NFLArizona Diamondbacks Gear . -- The Bishops Gaiters are showing they belong among the countrys top varsity football teams. Fake Diamondbacks Jerseys . 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Ray Allen announced his retirement from the NBA on Tuesday, writing that he is completely at peace with himself after a record-setting 18-year career during which he established himself as one of the best shooters in basketball history.Allen, 41, has not played in the NBA since the 2013-14 season, when he was with the Heat. He had been linked with multiple teams over the last two years and recently considered making a comeback with the Warriors and Cavaliers, league sources told ESPN.As part of a letter to my younger self posted Tuesday on The Players Tribune, Allen wrote, I write this to you today as a 41-year-old man who is retiring from the game.Allen was a 10-time All-Star over a career spent with four teams -- the Heat, Celtics, SuperSonics and Bucks. He won two NBA championships -- one with Boston in 2008, the other with Miami in 2013 -- and is the leagues all-time leader with 2,973 career 3-pointers made, 413 more than anyone else to date.In his post, Allen praised former teammates LeBron James, Dwyane Wade, Kevin Garnett and Paul Pierce.The men who you are going to win championships with are all going to be very different people, he wrote. What makes them champions is the boring old habits that nobody sees. They compete to see who can be the first to get to the gym and the last to leave.Allen averaged 18.9 points per game in 1,300 regular-season contests and shot 89.4 percent from the free-throw line, the seventh-best percentage in league history.When you start getting some national attention in high school, youll hear things like, Rays jump shot is God-given, Allen wrote. Listen: God doesnt care whether you make your next jump shot.God will give you a lot of things in life, but hes not going to give you your jump shot. Only hard work will do that.Allen is the last member of the Celtics famed Big Three to announce retirement plans this year.Garnett, 40, retired on Sept. 23 after a 21-year NBA career. Pierce, 39, announced three days later that he would retire after playing this season with the L.A. Clippers.Celtics general manager Danny Ainge issued a statement, saying: As one of the greatest shooting guards in the history of basketball, Ray Allen defined the word professionalism. Ray was born with special talent, but it was his leadership, tireless preparation, and infectious work ethic that made him a great teammate and champion. We would not have won the 2008 title without him.Teammates and coaches raved about Allens famed work ethic and commitment to fitness -- which now takes a different form, after he and his wife, Shannon, recently opened an organic fast-casual restaurant in Miami. Allen was almost always on the floor for a workout three hours before games, shooting on some occasions before the arena lights were even turned on.Wade said Tuesday that Allen inspired him.I learned so much from Rayy towards the end of his career, how he took care of his body, longevity and what it takes mentally and physically, he said.dddddddddddd [He had] a Hall of Fame career, man.He added: He pushed us to do things differently. He pushed us to take our bodies a different way. He talked to us about eating a different way and all kinds of stuff, man. So Ray was obviously an unbelievable basketball player but I think a lot of us are going to remember the person and what he meant to our team.Allen had the record for 3-pointers in a season for seven years, his mark of 269 standing until Stephen Curry made 272 in 2012-13 -- a record Curry has topped twice.Allens record of 2,973 3-pointers made in regular-season games doesnt even count the one that was his most unforgettable.His 3-pointer from the right corner with 5.2 seconds left in Game 6 of the 2013 NBA Finals for Miami sent the Heat to overtime against the Spurs in a win-or-else game, and helped them go on to win the title in seven games. Chris Bosh got an offensive rebound and passed to Allen, who was backtracking toward the corner.Allen, without even needing to look down to ensure that he was behind the line, elevated over Tony Parker and connected to tie the game -- even as arena workers kneeled around the court, holding the rope that they presumed they would soon be called upon to cordon things off for the Spurs championship celebration.On his way back to the bench to prepare for overtime, Allen gestured to those workers, shouting to put the rope away.It was just perfect, Wade said. No one else could hit that shot on our team but Ray, the way that it happened. Its crazy because he practiced it all the time. Ray has a drill where he sits on his butt, and he gets up and he backpedals back to the the 3-[point line] and he makes it. Thats one of the drills he does in the morning. So you look at that, you look at how he had to backpedal back to the 3-point line and get it off with defenders all on him. He practiced that over and over. I know coaches say all the time but remember that whole practice makes perfect [motto]? That was a moment where practice really makes perfect and we got a championship because of it.Allen, who played for UConn from 1993 to 1996, also starred in the 1998 Spike Lee film He Got Game, portraying Jesus Shuttlesworth, a top-ranked basketball prospect whose father (played by Denzel Washington) is in prison for killing his wife.Basketball will take you far away from that school yard, Allen wrote. You will become far more than just a basketball player. Youll get to act in movies. Youll travel the world. You will become a husband, and the father of five amazing children.The Associated Press contributed to this report. ' ' '