Hayden Panettiere and her football player boyfriend Scotty McKnight are officially broken up ... this according to sources close to the couple.
Sources tell us ... the two broke up a couple of weeks ago ... but it wasn't a nasty breakup. We're told the two are still "really good friends."
One source tells us, "They will probably be back together sometime down the road."
Scotty -- who played for the NY Jets -- is the 2nd pro athlete Hayden has dated -- she was with pro boxer Wladimir Klitschko for a year and a half starting in late 2010.
Meanwhile, Hayden's already showing signs of post-breakup hotness ... as demonstrated below in a screen grab from her show "Nashville."
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