The Chicago Bulls went to their third option at starting shooting guard on Sunday night at Target Center after Marco Belinelli joined Rip Hamilton on the injured list, and still 6-7 Jimmy Butler delivered a 43-minute, 20-point, 9-rebound performance that once again illustrated the challenges Timberwolves guard Luke Ridnour faces nightly.

Point-guard sized, Ridnour isn’t really a shooting guard, but he plays one on TV for a Wolves team that lacks both size and strength in the backcourt.

He has been asked to play that position for most of the past two seasons because coach Rick Adelman needs a second ballhandler beside Ricky Rubio and because his experience and determination makes him, in Adelman’s estimation, the best defensive option there.

“He has just been incredible,” Adelman said. “We just don’t have any size there. He just battles every night. It has got to be wearing on him. It’s amazing he has been able to play every game and just keeps going out every night.”

One night he might face Indiana’s 6-10 Paul George, a power forward in height and a guard in his skills.

The next, he could be up against Brooklyn’s Joe Johnson, a 6-7 shooting guard who likely comes in at more than his 240-pound listed weight.

“He has been a true warrior,” Wolves assistant coach Terry Porter said. “We’ve asked a lot of him, and he has sacrificed a lot. We appreciate and understand those sacrifices he makes every night. He battles and scratches and claws to the best of his ability.”

The Wolves list Ridnour at 6-2 and 173 pounds.