Sims, 25, played 73 games last season for Philadelphia and started 32 games after starting 25 of his 26 appearances for the 76ers in the prior season. Sims averaged 8.0 points and 4.9 rebounds last season while shooting 47.6 percent from the field. As a starter, Sims averaged 10.4 points and 5.8 rebounds in 24.6 minutes per game last season. The 6-foot-10 center also played 20 games for Cleveland in 2013-14 and two games for New Orleans in 2012-13 after going undrafted out of Georgetown.
Jefferson, 24, is a 6-foot-9, 218-pound power forward who played 50 games as a rookie last season for Brooklyn. Jefferson averaged 3.7 points and 2.9 rebounds in 10.6 minutes per game while shooting 44.9 percent from the field. He was the No. 60 pick in the 2014 draft out of Baylor.