The left-back will line up for the Reds against Real Madrid in Europeâs showpiece match on Saturday.
France striker Mbappe, a transfer target of Real Madrid, signed a three-year deal at PSG which drew criticism from LaLiga president Javier Tebas.
Kylian Mbappe said Sunday he believes he will "keep improving" as a player after choosing to sign a new contract at Paris Saint-Germain rather than join Real Madrid, as the France striker took to social media to explain his decision.
The 23-year-old had been heavily linked with a move to Real Madrid.