US Open champion Stan Wawrinka lost, Andy Murray’s hip looked fine, he revealed his penchant for watching Peppa Pig, and Jo Konta was calm personified in a first-round win. Those were the headline talking points on The Tennis Podcast after day one at Wimbledon.Presenters Catherine Whitaker and David Law, who are part of the BBC Radio 5 Live team at Wimbledon, convened to talk through a cracking opening day. Everyone was watching Murray’s movement closely, and he looked bemused by the interest after his straight sets win over Alexander Bublik. Rafael Nadal looked awesome against John Millman. Can Marin Cilic really see off both Murray and Nadal to reach the final, as Law has picked him to do in their pre-tournament predictions?Petra Kvitova had played only a couple of tournaments since returning from a knife attack in her home at the start of the year, yet she’s the favourite for the title with the bookmakers. How did she look on day one?And Whitaker and Law also discuss a marathon win for Aljaz Bedene over the giant Croatian Ivo Karlovic, the big wins for Konta and Heather Watson, and the sorry tale of Stan Wawrinka on grass - he was beaten by the very promising young Russian, Daniil Medvedev. The Tennis Podcast is a downloadable tennis radio show which is produced in association with Telegraph Sport and Eurosport. A new Tennis Podcast will be out after play every night during Wimbledon.  See acast.com/privacy for privacy and opt-out information.