The Worcester News has reported that both Simon Travis and Dean Beckwith are slight doubts for this evening.
Travis is said to have 'tweaked a hamstring' at Barnet whilst Beckwith has been suffering with a dead leg.
Looking forward to the game Graham Turner said that it was good to have a game so quickly after the defeat last Saturday.
"It's certainly nice to get a game so quickly after Saturday's poor performance. It's a challenge and the pressure is off a little bit without the quest for league points," said Turner.
"It's a very attractive fixture for us and the supporters. The important thing is a good performance.
"We would like to win and beat Coventry but the most important thing is getting back to a good level of performance."
Meanwhile Coventry assistant manager, Adrian Heath, has told the Coventry Telegraph that they 'will be taking this match very seriously indeed.'
"Cup history is full of stories about teams getting knocked out by smaller clubs because they are not prepared.
"People will look at this tie and say 'that could be a tricky one' and that's exactly how we see it. We'll have to be ready for it.
"Hereford will be really up for this one because it's a big game for them and they'll want to bounce back from their 3-0 defeat at Barnet which was their worst performance so far.
"And they will be a lot different from the players who ran out at Barnet, because tonight they've got nothing to lose.
"But we've had them watched a few times - Alan Cork was at the game on Saturday - and we know what to expect. The important thing is to be mentally prepared, because it will be a real battle for us."
Finally Hereford will be hoping for a higher attendance than at Accrington last night where just 2146 watched the Milkmen defeat Nottingham Forest.