This week, the UFC heads across the pond for UFC Fight Night 224 in London. The event at the O2 Arena features a heavyweight tilt between Tom Aspinall and Marcin Tybura . Elsewhere, many other combat sports events are taking place that feature a number of familiar names that have competed under the UFC banner. Check out which veterans of the global MMA leader are competing in MMA and boxing this week from July 21-22.