Pellegrini reveals Aguero played with hamstring injury, treated at half-time

If, for whatever reason, Sergio Aguero's five-goal performance Sunday wasn't impressive enough, consider it was the quickest five-goal tally in Premier League history and he required medical treatment at the interval, before scoring four of his goals.

Related: Sergio Aguero equals Premier League record by scoring 5 goals vs. Newcastle

Following Manchester City's 6-1 thrashing of Newcastle United, manager Manuel Pellegrini revealed that Aguero, who scored five times in 20 minutes, was dealing with a hamstring problem that was addressed prior to the second half.

"He needed treatment at half-time," Pellegrini said, according to ESPN FC. "He has a kick in his hamstring so it was important just to relax him because he was not 100 percent comfortable."

Pellegrini replaced Aguero with 25 minutes remaining in the fixture, denying him the opportunity to become the first player ever to score six goals in a Premier League match.