Michalik scored his second goal for Leeds which was his first since signing a permanent deal against Stockport County on 5 September 2009. He started the 2009–10 season mainly as a substitute, but had been required to come off the bench on several occasions and play a vital role for Leeds. It has been said his form has greatly improved under manager Simon Grayson. Michalik had a goal wrongly ruled out for offside in the League Cup tie against Liverpool. Replays showed that Jermaine Beckford and Luciano Becchio were onside. Michalik started the game for Leeds against Brighton & Hove Albion, and with Richard Naylor still injured Michalik once again partnered Patrick Kisnorbo at centre back against Leyton Orient and kept consecutive clean sheets. Michalik started the game against Kettering Town and was judged to be at fault for the goal conceded with Casper Ankergren also sharing the blame. Despite the error Michalik started his 4th game in a row in the league game against Oldham Athletic. Michalik kept his place in the Leeds team for the game against Huddersfield Town and the FA Cup replay against Kettering Town. Michalik is one of the free-kick takers for Leeds United and is known to strike a ball at over 100 MPH, although he is yet to score one of these. With injuries to fellow centre back's Patrick Kisnorbo and Richard Naylor at various points, Michalik has been able to get a regular run of games for Leeds.