The Brazilian striker is yet to make his first appearance for the Blues since arriving at the west London club on loan from Corinthians until the end of the season back in January.
Pato will be hoping to be involved when the Blues take on the Ligue 1 side in west London this week.
And the 26-year-old used his personal Instagram account to declare himself as focused as ever Chelsea prepare to host PSG.
Pato shared the photo above and wrote:
PSG are aiming for a fourth successive appearance in the quarter-finals, where they lost to Barcelona in 2013 and 2015.
Chelsea, meanwhile, are unbeaten in seven home games against French opposition and have kept five clean sheets. They are looking to book a fourth quarter-final in six seasons, and a seventh in the last 10 campaigns.
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