The 28-year-old midfielder has been hitting the gym in recent weeks as he bids to help Chelsea enjoy a positive end to the season under interim boss Guus Hiddink.
Chelsea played out a 1-1 draw with Stoke City at Stamford Bridge on Saturday as they warmed up for their Champions League last-16 clash this week.
And Fabregas seems to be determined to make sure that he is in the best possible physical shape heading into the European encounter.
Fabregas posted the picture above on his personal Instagram account on Monday morning and wrote: “Let’s goooo”.
Chelsea head into their clash with PSG looking to overturn their 2-1 first-leg deficit and reach the quarter-finals of Europe’s elite club competition.
The Blues are currently in 10th place in the Premier League table.
MORE: The latest football news