Ponting, who has had a dreadful series with the bat, injured a finger in the catch attempt.
"It's clipped him on the little finger on the left hand, he's a little bit sore at the minute, but he's gone for a precautionary X-ray," Siddle said.
"He's feeling upbeat, he's feeling good, (he's) just wanting to get it checked out but from all reports it seems all right."
While Johnson's six-wickets helped Australia skittle England for 187 in the first innings, Hussey's latest contribution with the bat may prove equally important.
In Image: Australian captain Ricky Ponting, left, and bowler Peter Siddle on the field