WORCESTER City will have to make do without their captain in Saturday's FA Vase third-round clash with Boston Town.
Mace will serve out the second of a two-game suspension after accumulating a number of yellows in the competition already.
The left-back was able to feature on Tuesday night in City's 4-3 Marsh Challenge Cup win over Cinderford, but will have to watch on from the touchline on Saturday.
It is a blow for manager Chris Cornes as Mace plays a pivotal role in a football sense, but more so for the effect he has on the team as a leader.
Whilst his disciplinary record is not particularly good, his impact cannot be understated and it will be up to vice-captain Elliot Keightley to carry the mantle, as he did in the 1-1 draw with Slimbridge in the league last weekend.
"Mace is a leader and has been terrific for us so far this season," said manager Cornes. "But the whole reason we have but this squad with the players in it is so we can cope when someone misses out."
Mace was sin-binned on Tuesday and will now have another ban coming his way after this one in the Vase.
"He's loud, he's vocal, he's a leader and it comes natural to him but we do have to talk about the ill-discipline. He missed last Saturday because of bookings in the league, he is missing this game this weekend because of cards in the Vase and now another sin-bin to consider.
"We will deal with it and he will be fined and that will be up to me because he has already had a fine from the players for the previous ban.
"There will be a bit of banter about it and that's how we deal with it. But he knows himself it's not good enough and he knows he needs to work on it."
Mace added: "It's my issue. I just cannot control myself sometimes and I should probably have learnt that by now and I have been told that by the group.
Referring to his sin-bin on Tuesday: "It was probably some frustration on my part as we probably should have had a couple of penalties and the one on me was a stonewall penalty for a two-hand push in the back.
"But I have full faith in the boys this weekend to go and get the job done in my absence."
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