Euro 2012: John Terry backs 'focused' Wayne Rooney

England captain John Terry backs a "focused" Wayne Rooney to perform in England's Euro 2012 qualifier against Montenegro tonight despite the arrest of the player's father on Thursday in a probe into betting irregularities.

England are currently top of Group G with 17 points from their first 7 games, avoiding defeat against second-placed Montenegro in Podgorica would guarantee qualification for Euro 2012 as group leaders.

Defeat would allow Montenegro to top the group should they win their final qualification game against Switzerland on Tuesday, with the head-to-head record consigning England to a play-off.