Graham Potter praised Bersant Celina for the manner in which he bounced back from his penalty disappointment at West Brom by netting against Manchester City.
The Kosovo international missed from the spot against the Baggies in midweek as his standing foot slipped which led to him scuffing the ball and it being cleared.
The Swans went on to lose 3-0, but the 22-year-old had vowed to bounce back in the right way and he finished a memorable flowing move to put his side on the cusp of a famous FA Cup upset against the reigning Premier League champions.
Unfortunately a late comeback saw the Swans' efforts to reach a first semi-final since 1964 come to nought, but Celina was among a number of players to impress in a performance of great character and quality.
And Potter was pleased to see the former City player make his mark at the end of a tough week.
"Like I said after the West Brom game, you have to deal with the criticism and whatever else comes because that is part of life," said Potter.
"But he just focused on the next match, the next training session. That is what we try to encourage the players to do whether things have gone good or bad.
"You just have to have the humility to go again and it's great for him that he gets a reward against his old team.
"It was just a shame we did not win."