The World Cup victor didn't join Ole Gunnar Solksjaer's squad for a flight to Wales on Friday ahead of the club's friendly encounter with AC Milan side at the Principality Stadium in Cardiff, with a back spasm reported as the cause.
"There is a lot of thinking [going on]", Pogba said of his future. "I have been three years in Manchester and have been doing great - some good moments and some bad moments, like everybody, like everywhere else". "I wasn't expecting him [on the flight to Cardiff]. He should be OK for Chelsea".
Solskjaer also said he had spoken to Romelu Lukaku over a controversial social media post revealing confidential details of a training sprint session.
With those, Solskjaer has arguably quashed all or most of the transfer rumours surrounding the 2018 FIFA World Cup victor, who had previously said that he is keen to move away from the club in pursuit of "new challenges".
Harry Maguire was undergoing a medical at United's Carrington training ground on Saturday morning before finalising an £85m move from Leicester City, while Solskjær is keen to add further to his squad before Thursday's transfer deadline.
Whilst the club claim a back injury is the reason for his non-attendance, it is believed that Pogba is once again angling for a move away from Old Trafford, as he attempts to force through a transfer to Real Madrid.