Chelsea manager Jose Mourinho says his side can afford to lose two games and still be crowned Premier League champions.
The Blues lead Manchester City by six points but with a game in hand ahead of the last two months of the season.
They host Stoke City on Saturday afternoon with the Portuguese happy with Thursday's "good and intense" training session.
"Yesterday's training session was a good and intense one and I was also an important part of the training session," Mourinho said.
"They need their legs and I need my voice, so I lost my voice.
"We did tactical exercises, remembering things and working on things we think are important for the game tomorrow. Maybe because my voice was quiet for the last couple of weeks I lost it yesterday.
"Everybody knows the way Stoke play but they are difficult opponents and that is why they have no problem staying in the Premier League.
"They have a manager who is there a couple of years and has a new contract and the same players and they are very stable. Everyone knows the way they play but it is difficult for everyone.
"We need six victories and one draw from nine matches. It is a good situation for us and one all the other clubs would like to be in, but we need to do that and we haven't yet."