Le'Veon Bell -- Flirts with Jordin Sparks ... After Record-Breaking Performance

Hours after having one of the biggest games of his life, Pittsburgh Steelers running back Le'Veon Bell wasn't done showing off his moves ... cyber-flirting with Jordin Sparks.

Bell played out of his mind last night -- putting up 204 yards against the Titans ... the most rushing yards by a Steelers player in "Monday Night Football" history.

Well, the recently single Sparks took notice ... posting, "Le'Veon Bell is just a beast. Titans D cannot contain him."

She then reposted Le'Veon's stat line ... adding, "Again, beast."

Bell -- who also appears to be single -- was all about it and tweeted back at Sparks ... "I see @JordinSparks liked the way I played last night."

Total cyber-flirting, right?

For the record, Sparks is a huge football fan (her dad is ex-NFL star Phillippi Sparks) .... and after things ended with Jason Derulo earlier this year ... we asked if Phillippi would be cool with his daughter dating a football player. She gave an interesting answer.

As for the twitter-flirting ... we'll keep an eye on it.