Tiafoe, who also lost in the US Open semi-finals two years ago, was understandably disappointed after the match and admits he began to cramp in the fourth set.
“It's tough. It's really, really tough. Really, really tough to swallow. This one's gonna hurt really, really bad,” confessed the No.20 seed.
“I thought I was the better player for sure tonight. In the fourth, I don't know, just had some in-and-out cramps. I just felt like my body just kind of shut down on me.
“Probably had a lot to do with nerves. I wasn't tired at all.
“I have been feeling unbelievable physically. But also, I mean, it could be a testament to how many matches I've played in the short time and I haven't played that many matches all year like that.
“Ultimately, I think nerves got the better of me tonight. Yeah, kind of just went down, just kind of like a similar thing with Alcaraz and Novak that year at the French. Kind of seems like the same thing. Couldn't really move.
“Got to tip your hat to Taylor. He stayed with it, he competed, he deserved it tonight. All the best to him in the final.”