Stevenage manager Graham Westley warned his players that they still need to turn in another strong display to book their place in the npower League Two play-off final.
First-half goals from midfielders Stacy Long and Joel Byrom put Stevenage on course for the final at Old Trafford as they swept aside an out-of-sorts Accrington Stanley 2-0 but Westley remains in cautious mood.
Westley said: "It's 2-0 at half time and we could have won by more. But we know that it is going to be a tough second leg and they are a very good side at home. It is a tough place to go and it will take a strong, organised and disciplined performance for us to get the right result."
He added: "I'd have liked us to kick on in the second half but we were struggling for energy in the middle of the park and that showed. We stopped them playing their natural game and forced them to revert to a lot of back to front football which we dealt with well.
"No two games are the same and we will go their to win the game - as we do every game."
Accrington boss John Coleman admitted his side had been well below par but is confident that Stanley's strong home form means the tie is not dead.
"They were comfortably the better side on the night and we can have no complaints," he said.
"They scored from a deflection which is hard to take but after that they could have had three or four and be out of sight. But in the last 20 minutes they showed enough wobbles to give us two sitters and we could easily be back in the tie.
"I'd like to think that Stevenage think that it's over, the way they celebrated after the game suggests that, but it's not dead. We've put at least three goals past 10 of the last 11 teams to come to our place and if we do that again then we've every chance.
"We were poor, but I don't think we can play that badly again. I said to the players at half time that if we kept a clean sheet in the second half then we would go to Old Trafford and I believe that is still the case."
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