The Argentina international has admitted that he is still recovering physically after a spell on the sidelines through injury but is confident his best form is around the corner
The forward, 26, has failed to score in his last four Liga appearances, something that has not occurred since April 2011, on the back of recovering from a thigh injury.
And in a post on the social networking site Weibo, Messi discussed Friday’s Catalan derby with Espanyol, which the Blaugrana won 1-0 thanks to an Alexis Sanchez goal, before touching on the issue surrounding his fitness.
"Games against Espanyol are always difficult," AS.com reported him as saying.
"Physically, I am not 100% yet but, with games under my belt, I’m sure I’ll get into my stride."
Barcelona play host to AC Milan in their Group H Champions League fixture on Wednesday, with the Catalan outfit looking to firm up their position at the top of the group.