Marc takes you through an historic night that saw Serena Williams play her final match at the US Open. He has all the highlights from that match as well as all the other big matches from Day 5, and the emotional post match speeches from Serena and Ajla Tomljanovic. He also talks to Brian Clark to get his thoughts on how the field is shaping up in both draws, and he chats with historian Steve Flink about Serena's place in history and het biggest moments at the US Open.