sentences:  In the first Test of the series at the Gabba, he was forced to bowl 53 overs in a draw and in the second Test at the Adelaide Oval he bowled 63.5 overs — the most by any Australian fast bowler in a single Test match in the 21st century, as his workload had been compounded by an injury to teammate James Pattinson mid-match.Australia needed to bowl South Africa out in the final two days of the Test match to avoid a second consecutive draw and Siddle was the most successful Australian bowler with four wickets.Whilst showing clear signs of exhaustion throughout the final day, Siddle pushed through and took wickets late in the match but was unable to get Australia the win.