Who was that masked man?

Who was that on the mound today at a windy Citi Field? The uniform said Maine and physically he looked like John Maine, but that couldn't have really been John Maine. I know this because I can't handle watching John Maine pitch. I can't handle the sweating. I can't handle the laboring through every single pitch. I can't handle the look of frustration which usually comes over his face after throwing his 56th pitch to load the bases in the first. And I can't handle the inability to ever put a batter away. Today, however, I was able to handle that guy on the mound. Hell, I was actually ENJOYING watching him pitch. I do hope to see him again. Whoever he was.