Andy Murray stagged an incredible comeback win in Basel over Russian Roman Safiullin and it was a match that featured an underarm serve.
Not only was it an underarm serve, it was also an underarm serve that happened on break point. On break point when Safiulin was leading 4-2 in the final set was it was the kickstarter to the comeback of Murray who won 4 games in a row to close out the final set 6-4.
Safiulin did not win the point but he didn't lose it immediately either. It took a few rallies and he botched a fairly easy volley to lose the point. Check it out below, the second slide.