 Peter Lever had a side strain and Mike Hendrick a fever and they were replaced by Chris Old and Geoff Arnold.More surprisingly Derek Underwood was replaced by the veteran Fred Titmus.Underwood had bowled some excellent balls in the First Test, but the WACA was a fast, true pitch with little turn and Titmus's ability to flight the ball was seen as an advantage, and his all-round ability would strengthen the fragile batting line up.