PHOENIX, Oct. 21 (Ticker) -- If the Phoenix Suns are going to overcome Amare Stoudemire's absence, they will need plenty of efforts like this one from Shawn Marion.

Marion scored 29 points in 29 minutes to power the Suns to a 113-81 rout of the Seattle SuperSonics in preseason action.

NBA TV highlights from Sonics-Suns: Play

The team's leading scorer last season with a 26.0 average, Stoudemire will be out until February following left knee surgery earlier this month, leaving a mammoth hole on Phoenix's frontline.

If Marion can improve on his 19.4 scoring average, the Suns may be able to avoid a significant drop from last season's Western Conference-high 62 wins. He shot 11-of-17 (65 percent) on Friday and had four of his team's nine steals before sitting out the entire fourth quarter.

James Jones, who figures to spell Marion or start at the other forward position, made 3-of-5 3-pointers and finished with 15 points. Eddie House scored 11 points on 5-of-6 shooting, all in the fourth quarter when Phoenix pulled away.

The Suns never trailed after Raja Bell opened the scoring with a 3-pointer. They finished 11-of-24 (46 percent) 3-pointers and had 28 assists to Seattle's nine.

Ray Allen scored 20 points through the first three quarters and Damien Wilkins had 18 overall for the Sonics.