Ashes 2013: England need to improve - Alec Stewart

Former captain Alec Stewart believes England "underperformed" in the first Test despite beating Australia, but feels they can improve in time for the second Test at Lord's, which starts on Thursday.

England beat the tourists by 14 runs at Trent Bridge on Sunday, with James Anderson taking four wickets on the final day.

Stewart thinks England will win the series if Anderson continues to perform, but warns Australia will be looking to bounce back from their defeat.