Following his heavy workload in the first two Tests of the series, Siddle was rested for the final match. Some of his critics blamed this on his new vegetarian diet, though Siddle himself denied that his diet was responsible for the fatigue. When Siddle returned to the Test team for the series against Sri Lanka, he registered his career-best bowling figures in Test cricket, taking nine wickets across both of Sri Lanka's innings. His spell of 4 for 50 at Hobart was nominated to be one of the best Test bowling performance of the year by ESPNCricinfo. Siddle then struggled to make an impact with his bowling in India, though he did make history by becoming the first number 9 batsman to score a half century in both innings of a Test match.