Denis Shapovalov was controversially disqualified from his quarter-final match in Washington on Friday.
The former world number ten was enjoying his best run at an ATP event in over a year before he was dismissed by the supervisor late in the second set against Ben Shelton.
Shapovalov, who lost to Shelton at Wimbledon this year, was alleged to have directed foul language at a spectator after an unforced error landed in the net and gifted his American opponent three match points.
A default from an ATP tournament automatically results in the loss of all ranking points and prize money won during the event.
However, after a successful appeal, Shapovalov was delighted to have these reinstated on Monday.

What did the umpire say to Denis Shapovalov?
Shapovalov returns to the Montreal Open in his native Canada this week where he faces Brandon Nakashima in the first round on Wednesday.
In his pre-tournament press conference, the 25-year-old explained exactly what happened on the court in Washington that led to his default.
He said: “The umpire didn’t even talk to me. As soon as he heard me say something he called the supervisor. There was no discussion with me.
“Basically once he called the supervisor the decision has already been made. Once he comes on court he needs to listen to the umpire, so it was basically pretty much over for me from that moment.
“I really don’t think there was a situation at all, so the fact there was one made, it’s still tough for me to believe that it escalated to what it did.”
Shapovalov is no stranger to controversy
Shapovalov was left in utter shock by the umpire’s decision to default him, which he described as ‘unfair’ and ‘unnecessary’.
But It is not the first time Shapovalov has been embroiled in controversy on a tennis court.
Fans across the world were left shocked in 2017 when the young Canadian was defaulted for firing a ball straight into the umpire’s face.
It came during a Davis Cup encounter against a Great Britain team containing the likes of Dan Evans and Jamie Murray.
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