Pardew says that both players have to produce performances, should they get the opportunity, in order to force their way into his plans.
"I certainly feel this week is an opportunity for strikers to make a case," Pardew told reporters. "Gayle misses one game so he comes back for Man City and Man United.
"Therefore that leaves me with two natural strikers here, Fraizer Campbell and Patrick Bamford, with Chamakh and Wickham both being injured. Whether I play two of them or one of them, it looks to me like one of them will feature for sure."