LOS ANGELES — The Mets are Metsing again. Max Scherzer was recently bitten by his dog on his throwing hand, a person with knowledge of the incident confirmed to the New York Daily News. Scherzer will not require stitches, and the Mets do not appear concerned that the dog bite will set back his rehab from a left oblique strain. Scherzer later revealed more details regarding the chomp, via a tweet. He added that he returned to throwing after one day off due to the incident. “My dog Rafi hurt her leg on a run,” he tweeted. “She was howling in pain and I went to calm her down by putting my hands o…