Spurs missed out on the chance to go top of the Premier League table when losing 1-0 to West Ham United at Upton Park but midfielder Mason, despite admitting it was a negative result, was confident of recovering in Saturday's crucial North London derby with Arsenal at White Hart Lane.
"We were very angry to concede from a set piece and from there we were always chasing the game," said Mason after Spurs lost out to Michail Antonio's seventh-minute header.
"We need to recover well and put in a good performance on Saturday so we can forget this."
Defender Wimmer echoed Mason's sentiments: "It was very disappointing. We were a bit better in the second than the first but we didn't play well
"It was a very unnecessary result tonight but we will turn it around on Saturday. We will give it our all to do that."