Broad warns England to be wary of 'dangerous' Clarke

England fast bowler Stuart Broad has warned his side to be wary of 'dangerous' Michael Clarke despite the Australian captain struggling to hit top-form so far in the Ashes series.

Heaping praise on Clarke's remarkable Test career, Broad said that his team is very well aware of the Australian's prowess with the bat.

Ahead of the fourth Test in Trent Bridge, Broad said that they did a lot of research on Clarke as they knew how dangerous the Australian captain could get once he hits form, Sport24 reported.

Clarke, who averages 49.73 in Test, has scored just 94 runs in six innings in the first three Ashes tests. The batsman, who has played the majority of his career at No 5, was moved up the order to fourth in 2013 and has largely struggled since.

The 34-year-old, who suffered from back and hamstring injuries in the past year, is at a crunch point in his brilliant career and will seek to level the series in the fourth Test, which starts from Thursday.