Stewart led the Cougars back from a pair of double-digit deficits, but was intercepted on the final play of his collegiate career as Memphis wound up beating BYU 55-48 in double overtime at the inaugural Miami Beach Bowl on Monday afternoon. Stewart was pressed into service after BYU starter Taysom Hill was lost to a broken leg in Week 5 and wound up throwing for 2,621 yards and 25 touchdowns in his senior season. Paxton Lynch threw four touchdown passes and rushed for three more scores, Jake Elliott kicked a 54-yard field goal to end the first extra session and Memphis needed to convert a pair of fourth-down throws on the final drive of regulation just to have a chance. Lynch threw for 306 yards and the four touchdowns, including a 5-yarder to Keiwone Malone with 45 seconds left in regulation — on fourth-and-4, his second fourth-down conversion on the Tigers' final drive of regulation. [...] Lynch said afterward that Malone wasn't even the intended receiver. [...] back came BYU again, with a field goal from Trevor Samson and — after the Cougars stripped the ensuing return away from Memphis' Joe Craig for a fumble — Paul Lasike's second touchdown tied it at 38-all with 10:52 left.