Potter hailed Yves Bissouma's superb strike that put Albion in front against Blackpool.
The 24-year-old continued his fine run of finding the back of the net from range as he fired home against the Tangerines as Albion won 2-1 at the Amex on Saturday afternoon.
He said, “He had a few shots before that which he'd scuffed across the floor. But when we saw it fly into the top corner with his next effort it was difficult to argue with!
“He keeps telling me he's got that quality to strike from distance. We're happy that he has contributed to us winning and getting through to the next round."
Potter paid tribute to the application of Albion's opposition after the fourth round victory.
“We could have been a little bit more clinical, that's probably the only bit we can say we can do better. We controlled the game, but Blackpool were very well organised defensively and made it hard for us so we had to be patient.
“We created enough chances over the course of the game to win but when you're only leading by one goal anything can happen. I am pleased for the players and the way we restricted the opposition.
“Credit to Blackpool, they were well organised and a threat so we're happy to go through."
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