Minnesota Timberwolves officially picked up the fourth-year options on Ricky Rubio and Derrick Williams on Saturday.
The Wolves also waived center Chris Johnson to get their roster down to 15 players.
Rubio was the No. 5 overall pick in the 2009 NBA Draft, but played in Spain and didn't join Minnesota until the 2011-12 season. Rubio has averaged 10.7 points, 7.7 assists and 2.3 steals with the Wolves.