The Argentine wizard notched a stunning hat-trick as Barca swept Malaga away 4-1 but the Catalans remained five points adrift of league leaders Real Madrid after the latter recorded a 4-1 victory against Athletic Bibao.
"There is a lot [of time] left [before the end of the league] - the second round of matches - and we will keep pushing," Messi told AS after the match.
The FIFA Ballon d'Or winner hinted that his side have been beset by fatigue although he added that Barca will be primed and ready to tackle Real Madrid in their Copa del Rey second-leg quarter final clash.
"We got tired today, but we get tired after every match because they are demanding," he added. "We are used to playing every three days. We will prepare for this match well."