George McCartney feels Leeds can cause another FA Cup upset when they take on Arsenal in this week's third-round replay at Elland Road.
Sunderland defender McCartney rejoined Leeds on loan until the end of the season in time to start in Saturday's 4-0 home win over Scunthorpe, but will not feature on Wednesday as he was not eligible for the first meeting at the Emirates Stadium.
The 29-year-old said: "Obviously you want to be a part of it against the big teams.
"They definitely deserved a replay and could have won the game. The atmosphere should be electric.
"There's plenty of confidence, spirit is high and the lads know they are capable of getting a result."