Adelaide midfielder Bernie Vince could miss up to four weeks of AFL after breaking his hand.

Vince sustained the injury in the Crows’ win over GWS on Saturday.

The Crows said on Sunday scans confirmed Vince had a broken left hand and would be sidelined for two to four weeks.

Onballer Jared Petrenko is also in doubt for the Crows’ showdown against Port Adelaide next Sunday.

He was knocked out inside the first two minutes of the GWS match after colliding with teammate Jason Porplyzia.