LAS VEGAS -- The long-awaited return of Conor McGregor ended with a whimper as the UFC superstar injured his right leg in the opening seconds of his fight with Max Holloway and was forced to retire in the first round of their main event bout at UFC 329 at T-Mobile Arena. Holloway was awarded an underwhelming TKO victory after the welterweight fight was waved off at 1 minute, 9 seconds. It was a st...