Former British tennis player Greg Rusedski hasn’t played professionally since retiring in 2007, but returned to the court against Guardian writer Jacob Steinberg at the O2 Arena ahead of the ATP World Finals. Rusedski, remembered for his fierce left-handed serve, gave Jacob five of his best serves, along with some tips for the future

Sky Sports will show every Murray match – and session – from the Barclays ATP World Finals live, starting this Sunday