The Heat saw its future flash before its eyes late in Thursday's 103-81 win over the host Thunder.
LeBron James may have broken his nose as he scored the final of his game-high 33 points. James, hit by Serge Ibaka twice during his rise to the rim, was hurt with just under six minutes left in Miami's surprisingly easy win over the Western Conference leaders.
Chris Bosh and Dwyane Wade scored 24 points apiece behind James to lead Miami.
Kevin Durant, considered the front-runner for this year's MVP award, scored a team-high 28.