Hamstring pain

I intended to go out to the park this afternoon and run trails after the Texans game, however, the game went into overtime and there was insufficient daylight left to do a long run at the park.  So, I ran an unplanned route on the roads in town.  It turned out to be 2.8 miles.  Toward the end of the run, I had sharp pains in my right hamstring.  Darn.  Hopefully, I just tweaked it.  I will go slow and easy tomorrow and see how it feels.  I sure do not need another hamstring injury in the middle of the marathon season.