He wasn't exactly playing by the rules, but sometimes rules were made to be bent, or in this all out broken. Outside the box thinking was Tim's way. He was a strategic planner. So these kinds of things came naturally when the rules weren't strictly enforced anyway and he had leeway. "Tough talk. But can you walk the walk." He mocked all in good fun. As Robin, Tim was often at a disadvantage because of his size so he couldn't allow that to be a crutch. It'd been his excuse in Middle School, but recently in the last couple days he learned a lot. Size and years didn't matter it was what you did with them that made all the difference. He was creative and that helped his game by the ten folds. Without it he would have been in hot water against Clark's experience and height. But it wasn't a regulation game so it didn't matter all that much.
Tim smirked and did what he was told, waiting for Clark to start moving. "Wasn't time for it in Gotham, between Arkham riots and detective work." He shrugged as if they were normal every day things and he was just describing going to the grocery store or eating breakfast. In Gotham they were. That city was plagued with criminals, and psychopaths of the worst kinds. With his night job as Batman's partner, it often overlapped and cut into those kinds of activities. "I don't think football's for me. "He winced at the idea of tackling as he watched the ball and darted forward for it.