Chelsea players were hauled into morning training today.
Manager Mauricio Pochettino demanded the early call after yesterday's 4-1 thrashing at Newcastle.
The Sun says the Argentine ordered in his players with plans to steam into them after the performance on Tyneside.
Pochettino said afterwards: "It was our worst game of the season.
"It was tough to be in the stands [for three yellow cards this season].
"We cannot complain about the result, we did not read the game from the beginning."