John McGreal is looking forward to the test his U's side will face at St James Park on Monday.
The U's head to Devon with a slender one goal advantage after the first leg on Thursday, the first time the two sides have been separated in the three clashes this season.
McGreal is expecting another tight match down in the South West, but is looking forward to the challenge.
He told the official website: "It was great to win the first leg, but there is so much work still to be done in the second leg to keep that advantage."
"All three games against them have been tough matches for both sides, and it's no surprise that it took something special to make the breakthrough.
"We have to go there now and do everything we can to play to our full potential - games like this don't come along very often in a player's career.
"The lads will have to relish the challenge and leave everything out on the pitch.
"We were all gutted that the fans weren't at the JobServe Community Stadium for the first leg, and it will be strange to not hear our usual vocal away support."
"I'm sure we would have had a massive following in that litttle stand they have at one end, and they would have made some real noise pushing us on.
"They'll all have to watch or listen safely at home, but I hope they will still be making lots of noise."