Crystal Palace have made a fine start to the new Premier League campaign and currently sit in ninth in the Premier League table.
Palace are still looking to find a number nine, having experimented with a number of players in the striking position this term, but Pardew has suggested that Wickham and Chamakh will have to wait for their chance.
AP: Connor definitely won't start, nor Chamakh. They're the only two definite non-starters [vs. Watford].— Crystal Palace FC (@CPFC) September 25, 2015
Pardew's comment could be good news for Dwight Gayle, who will be desperate to start, having bagged a hat-trick in midweek.
The 24-year-old striker scored three times against Charlton Athletic in the Capital One Cup, as his side cruised through to the fourth round of the competition by winning 4-1.
Gayle has had to bide his time for an opportunity this season, with Pardew generally picking Wilfried Zaha and Yannick Bolasie to lead the line ahead of him, but it seems his chance could come on Sunday.
Beating Watford has proven a tough test this season, though, with the newly promoted side acclimatising well to life in the Premier League.
The Hornets have won their last two fixtures against Swansea City and Newcastle United, and they currently sit in 10th position in the top-flight.