Lionel Messi is "increasingly uncertain" about signing a contract extension with Paris Saint-Germain, according to L'Équipe (h/t Get Football).
The 35-year-old's contract with the French club expires at the end of the season, but he agreed in principle to sign a new deal with the club in December, per Julien Laurens of ESPN. Laurens reported the two sides were expected to step up negotiations in January, but they are yet to come to an agreement.
Messi remains one of the top players in the world, leading Argentina to a World Cup title in December while winning the Golden Ball as the tournament's best player.