Drummond missed last weekend's 3-0 home defeat to Wycombe as he was serving a one-match ban but he will come back into contention to face the Millers.
Defender Laurie Wilson will be assessed after coming off after just 28 minutes of last weekend's defeat and Paul Scott (knee) and Paul Mullin (back) are sidelined.
McIlroy has enjoyed a successful five-year tenure as Shrimps boss and brought the club into the Football League for the first time.
Yet the current campaign has been a struggle and McIlroy`s men lie just three places above the relegation zone.
McIlroy said: "I am totally honest with myself and fully admit that the results haven't been good enough for me this season."
Source: PA
Source: PA