Inter Milan striker Lautaro Martinez admits coach Antonio Conte's methods are weighing on the players.
Martinez was speaking after scoring in victory over Brescia.
"It was difficult, a very intense game against a team that moves very well," El Toro told Sky Sport Italia.
“We knew that it was going to be tough to take the three points here, but we tried to impose our football, knowing full well Brescia would clam up and defend.
“Some fatigue is natural, as we play with a great deal of intensity every three days, so that needs a lot of physical effort. We are nonetheless happy with the work we're doing for our coach.
“As always, we take it one game at a time, know we are doing very well and it's important to once again return from an away fixture with three points."