Theres an important update out of Detroit regarding Reggie Jacksons timeline for a return to the court and some new wrinkles in some fantasy stars games. Those are just a few of the many storylines on a very busy week around the NBA.Heres a list of the most fantasy relevant news and notes for all 30 teams around the league heading into the sixth week of the season:Atlanta Hawks:?The Hawks are 1-4 in their last five games, and offensive struggles are the main reason why. Chris Vivlamore of the Atlanta Journal-Constitution lays it out perfectly: Over the past five games, the Hawks are averaging 89.6 points, a 41.2 field goal percentage and a 29.3 3-point field goal percentage per game, he wrote. Over the first 11 games, the Hawks averaged 107.8 points, a 48.0 field goal percentage and a 37.5 3-point field goal percentage. The task doesnt get any easier on Monday, as the Hawks take on a Golden State defense that has risen all the way to No. 7 in the league (101.9 points per 100 possessions).Boston Celtics:?Al Horford will sit out Mondays game against Miami due to the birth of his second child, likely opening the door for Kelly Olynyk to move back into the starting lineup. Be aware, though, that Olynyk averaged just 8.7 points and 5.7 rebounds in the games that Horford missed due to a concussion earlier this season.Brooklyn Nets:?The Nets have lost their last five games by at least 17 points, and there isnt a lot to be excited about in Brooklyn. Unfortunately, the return of Jeremy Lin (hamstring), out since Nov. 2, may also still be a ways off. Lin hasnt resumed full practice yet, wrote Brian Lewis of the New York Post over the weekend. And with games upcoming Sunday, Tuesday and Thursday, missing a month total seems a real possibility. ... Rookie second-rounder Isaiah Whitehead has filled in at point guard but will see his role drastically reduced once Lin is able to get back on the court.Charlotte Hornets:?Nicolas Batum missed Saturdays game against New York due to a minor eye injury, and Jeremy Lamb took full advantage as a fill-in starter with 18 points and 17 rebounds in 36 minutes. This is something to keep in mind if and when Batum misses more time at some point later this season, but he is probable to return Monday against Memphis, and Lamb isnt worth a fantasy roster spot as long as Batum is available to play.Chicago Bulls:?In case you missed it, the Bulls discovered another injury to oft-injured point guard Michael Carter-Williams on Friday when a CT scan revealed a small bone chip in his left wrist. The big question when MCW does return is how hell mesh with a Bulls team that, at 10-6, is one of the biggest surprises in the NBA. Chicago ranks seventh in offensive efficiency and eighth in defensive efficiency, and coach Fred Hoiberg may have some hesitancy to incorporate a nonshooter like Carter-Williams into a rotation thats playing well.Cleveland Cavaliers: Efficiency is the name of the game these days, and few have done it better of late than Kevin Love. Averaging just under 30 minutes a game in his last five contests, he has still managed to average 26.2 points and 11.6 rebounds in that span while shooting 57.5 percent from 3-point land and making 4.6 3s per game.Dallas Mavericks:?Deron Williams averaged only 17.5 minutes in his first two games back from a calf injury, and at age 32, it could take some time for Williams to get up to speed. The 3-13 Mavericks are clearly in a rebuilding season, too, so dont be surprised if they continue to take a slow approach with Williams as he works his way back.Denver Nuggets