England boosted by Pietersen's return
"It's pretty much all right now," Andrew Strauss said of Pietersen's hamstring strain. "There was no point in risking him [against Ireland] but he should be OK for the Twenty20."
Collingwood too was optimistic, despite leaving the field for treatment during Ireland's innings. "It's a bit tender at the moment but hopefully I should be OK," he told BBC Sport. "I could have stayed on and bowled a few more overs but it was tightening up and we thought it would be best to get it iced up. Hopefully it's not too bad. We'll see more when I get into running and sprinting then make a decision but I can't see it being a problem."
While England have some international Twenty20 experience - the victory over Australia on the same ground a year ago kick-started a remarkable summer - this will be Sri Lanka's first outing. However, they showed that they are likely to adapt quickly when they took on a PCA Masters XI at Arundel on Tuesday, thrashing the ball to all parts in making 180 for 3 off 16 overs before rain set in.
A full house is expected at Southampton, with many fans arriving at 4pm to watch England's World Cup match against Trinidad & Tobago on the giant replay screens. The Twenty20 game starts at 7.15pm.