MIAMI (AP) — LeBron James had a pained expression on his face during warmups, left the court for a bathroom break just before tipoff and retreated there again to get his ankle re-taped in the first quarter.

He was clearly not feeling his best.

His teammates didn’t seem to be making him feel any better, either.

James’ final numbers from Game 4 of the NBA Finals looked stellar on paper: 28 points, 10-for-17 shooting, 4 for 8 from 3-point range, and eight rebounds. That alone just wasn’t anywhere near enough, and the Miami Heat are now in a colossal amount of trouble — the sort from which no team has ever successfully emerged before.

The Heat trail this title series 3-1 now, having been embarrassed at home once again by the San Antonio Spurs, who took command from the outset and beat Miami 107-86 on Thursday night. Game 5 is in San Antonio on Sunday night, when the reign of James and the Heat atop the NBA could end by being denied a third straight championship.

No team in NBA Finals history has ever blown a 3-1 lead. And the Spurs haven’t as much as lost three straight games since January.

The Spurs took control with balance, eight players scoring in the first quarter alone.

The Heat? They didn’t have anyone besides James reach double-figures in scoring until 7:37 remained, and by then there were streams of Miami fans filing out of the arena, quite possibly for the final time this season, maybe even for the final time in what’s been known as the “Big 3” era. Unless the Heat win on Sunday, the season will end and an offseason that will bring answers to many questions shall arrive