West Ham United veteran Mark Noble believes it's crucial for the club to bolster their ranks, but admits it is tough to compete financially with the top teams.
Manager Slaven Bilic led the Irons to 11th position in the Premier League after an up-and-down first season at the London Stadium.
Bilic has managed to bring in experienced defender Pablo Zabaleta from Manchester City, but Noble believes West Ham require further signings to build on last season's finish.
"I think we need to get a few in. I'm sure the chairman is working tirelessly to get them in, but this market is so hard," he told Sky Sports.
"Players are so expensive now and you get priced out. We're competing with so many other teams to get the players we want."
When asked about Zabaleta, Noble added: "He's an all-round good fella. It's going to be a change for him because he's used to having the ball for 70 or 80 per cent of the game.
"I've spoken to him on text already and he's really keen to meet the lads in pre-season."