SPOKANE, Wash., Oct. 26 (Ticker) -- Nick Collison and the Seattle SuperSonics eliminated the Golden State Warriors' push at perfection.

Collison scored 19 points and Damian Wilkins added 18 as the Sonics posted a 111-107 overtime victory over the Warriors in the preseason finale for both teams.

Johan Petro had 16 points for Seattle (4-4), which ended exhibition play with three straight wins while handing Golden State (5-1) its first setback of the preseason.

With 3:51 left in the extra session, Collison snapped a 100-100 tie with a hook shot, giving the Sonics the lead for good.

Ike Diogu netted 25 points and Monta Ellis and Dajuan Wagner added 20 and 18, respectively for the Warriors.

In the final moments of regulation, Diogu split a pair of free throws with 31 seconds remaining, forging a 98-98 tie. On Seattle's ensuing possession, Wilkins missed a jumper, leaving eight ticks for Golden State.

But first-round pick Patrick O'Bryant missed a 20-foot jumper prior to time expiring.

Warriors undrafted rookie Anthony Roberson left the game just before halftime due to an apparent knee injury.

Seattle opens its season at home against Portland on Wednesday, while Golden State hosts the Los Angeles Lakers on the same night.