St Helens full-back Jack Welsby is this week's guest on The Bench with Jenna and Jon.With Jenna away presenting The Hundred, Jon and Jack are joined by Sam Tomkins who lifts the lid on his decision to come out of retirement and return to rugby league.Jack tells us about his hamstring injury and how his rehab is going, and Jon asks which Olympic sports they could all compete in... dressage anyone?