Chelsea manager Jose Mourinho has dismissed reports that he will spend big this summer following his return to the club.
It was confirmed on Monday that the 50-year-old would be taking charge at Stamford Bridge for a second time after leaving in 2007.
The Blues have already been linked with a number of players since Mourinho's appointment was announced, but the Portuguese insists that he wants to achieve results through hard work.
"We have to improve the team, but when I say improve the team people are already thinking about how many millions Chelsea will spend," he told ChelseaTV. "When I say improve the team, I mean through work.
"My work has to improve players and improve the team. If I don't do that I am not happy with myself."
Mourinho has penned a four-year contract with the Europa League champions.