He was tried for the murder of Mr Folan but was found not guilty.
Sheffield United's Derek Geary has ankle and thigh injuries while Wigan's Caleb Folan has a hamstring tear.
BBC: SPORT | Football | Internationals | Republic squad hit by withdrawals
She had apparently witnessed an argument between him and another man, Brian Folan, at Mr Lafferty's house in Paisley.
Sam Ricketts raced down the right wing and provided a perfect cross for Folan to head powerfully past Lee.
As Wigan sought the insurance policy of a second, Aghahowa, Folan and McCulloch had shots blocked in a frantic goalmouth scramble.
The lively Caleb Folan then blazed over the bar following good work by Antonio Valencia and Heskey also had a shot blocked.
Pompey never matched Wigan for appetite, epitomised by Aghahowa and Folan who worked tirelessly to chase down lost causes and close down defenders.
Hull's cause was not helped when Folan - being blocked from chasing a backpass by Skrtel - kicked out at the centre-back and was deservedly red-carded.
On the hour, Caleb Folan was sent-off for kicking out at Martin Skrtel, whose mis-timed shot was headed in by Dirk Kuyt to make it 2-0.
Caleb Folan headed Hull in front after 70 minutes, Richard Garcia added a solo third and Nathan Doyle's deflected shot made it four in injury time.
Wigan forced the pace at the start of the second half, and Folan laid the ball back for Danny Landzaat who drew a full-length save from James.
At the other end Sol Campbell timed his tackle perfectly as Folan bore down on goal, and David Unsworth saw his lob beat James but drift wide of the target.
Valencia dispossessed Tal Ben Haim on the left flank and played the ball into Folan, whose first-time flick allowed Paul Scharner to cross and Heskey bundled the ball home from close range.
Hull responded with a substitution of their own, sending on Folan for the tiring veteran Dean Windass - and he did make an impact with the goal the stamped his side's ticket to Wembley.
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