By Alek Arend NFL star Joe Burrow took a big step in his recovery from surgery this Monday morning. The Cincinnati Bengals quarterback underwent an operation to remove his appendix last week at the start of training camp. Head coach Zac Taylor later told reporters he’s unsure when Burrow will be able to return to practice. “NFL Network Insider Ian Rapoport reported Tuesday that Burrow is undergoing surgery to remove his appendix, per a source informed of the situation,” said Kevin Patra of NFL.com. “While there is no good time to have surgery, it’s better for Burrow to find out now he needs th…