Crawley boss Billy Smith has warned his side they still have work to do if they are to reach the second round of the FA Cup for the first time in 11 years.

Reds are favourites to see off fellow Dr Martens League outfit Tiverton in the replay at Broadfield Stadium on Tuesday week (7.45pm) after Nic McDonnell's first-half header earned them a deserved 1-1 draw in Saturday's first round encounter at Ladysmead.

The winners will be at home to Conference side Dagenham and Redbridge on December 7.

But Crawley have produced some indifferent performances in front of their own fans this season and Smith knows they must quickly get what is expected to be a 2,000-plus crowd behind them in the replay.

He said: "I would have settled for a replay before because we knew it was going to be a hard game. But I know our home form has sometimes let us down and they are a useful side who are still capable of causing us problems so there is still work to be done."

Smith felt his side should have settled the tie on Saturday after Reds squandered some good chances late in the second half.

"We missed better opportunites than they did," he added. "The conditions were difficult but we opened them up enough times and should have won the game."

Goalscorer McDonnell believes a good start is the key to success in the replay. He said: "If we can get on top early there's no reason why we can't go through."