Guingamp let slip a two-goal lead as the champions avoided a first home defeat in Ligue 1 this season thanks to a late comeback.
Edinson Cavani scored two late goals to spare Paris Saint-Germain's blushes as the Ligue 1 champions fought back to salvage a 2-2 draw against Guingamp.
The Uruguayan forward became his club's all-time leading scorer in the French top-flight when he converted a 75th-minute penalty, going clear of Zlatan Ibrahimovic in the record books.
Having halved the deficit, Cavani made sure the title winners avoided suffering a first home defeat in the league this season by heading home Thomas Meunier's cross.