Juan Mata has hinted at potential problems at Chelsea, according to the Daily Star.
The Spaniard, named the Blues' player of the year last season, has been closely followed by Manchester United, Arsenal, Tottenham and Liverpool over the course of the summer having been frozen out of the starting XI by Jose Mourinho.
Mata was excluded from the squad entirely for the home game victory over Fulham at the weekend, and with Mourinho criticising him for not working hard enough, is enduring a difficult period at the club.
The 25-year-old implied that he was having trouble whilst thanking fans for their support.
"A million thanks for your messages," he said.
"They are really moving, everything would be more difficult without you guys.
"Another intense week is starting, again with games in two different competitions.
"We weren't able to win twice in a row at Stamford Bridge against Basel and Fulham - we will try to do it this week.
"I have not been able to win the League Cup with Chelsea yet.
"I would love to add this trophy to my record. It would be very special to end my career having won all the different football competitions in England."
Mata is expected to start for Chelsea in the Capital One Cup against Swindon tomorrow night, but may have difficulty in forcing his way into Mourinho's plans for the tougher fixtures.
The Portuguese manager has openly declared that Oscar is his favoured no.10, and subsequently Mata will make way for his inclusion.
"Juan has to work and has to adapt to a certain way of playing because I'm not ready to change Oscar's position," Mourinho said.
"Oscar as a number 10 is a player who gives us creativity, but at the same time, when we want to press up, Oscar is a runner and he is a player capable of pressing."