"Second position was not done before the game," Mata told United's website. http://www.manutd.com "It was not done even if we won. It is even more important for the next games and we know we have to compete until the last week.
"It's been a long season but we need to make sure we can compete until the end, that we keep that second position and we fight for being in another FA Cup final and try to win it."
United lost 2-0 to Spurs when the two sides met in the Premier League at Wembley in January.
Before their cup clash, United travel to 11th-placed Bournemouth in the league on Wednesday while Tottenham face Brighton and Hove Albion at the Amex Stadium on Tuesday.
(Reporting by Aditi Prakash in Bengaluru; Editing by Christian Radnedge)
