This week, the UFC returns back to its home base in Las Vegas for UFC on ESPN 51 . The event at UFC Apex features a welterweight bout between Vicente Luque and former lightweight champion Rafael dos Anjos . 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 bareknuckle boxing this week from Aug. 10-12. Check out the names and details about their bouts below