The Hammers boss was without six first-team players for their goalless draw against West Bromwich Albion on Sunday, including Andy Carroll and Mohamed Diamé.
The east London outfit have been linked with strikers Martin Harnik and Marouane Chamakh in recent weeks, and Allardyce conceded they may be forced to enter the market to reinforce their threadbare squad.
“I feel pleased and proud of what the lads have done today given the fact we only had two players on the bench we could call first-team players, and we put those on in the shape of Maiga and Tomkins,” Allardyce told Sky Sports.
“It will be important to us because we want to continue to where we got to already and push on. We don’t want to slip down the league and lose matches.
“We want to win football matches, and to do that, we’ll have to do a little bit in the transfer window and get those who are injured fit and hopefully we won’t have to suffer this crisis again.
“Of course you get injuries, of course one or two can happen, but six means we need to get them back quickly. We’ve coped well today but I’m not sure how long we will cope if we have them out too long.”
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