The first weekend of July has arrived. Enjoy this slate of baseball while you can. Before you know it, we’ll reach the MLB All-Star break and hit that dead zone of sports where the only stuff to watch will be the ESPYs and maybe the Tour de France, if you’re one of those people.We’re going to play a baseball doubleheader with a WNBA upset for our nightcap. On with the picks:Boston Red Sox at New York YankeesYes, we’re going to open with the Yanks and the Sox for the second straight day. And yes, it’s a home run prop pick again. But you’ll forgive the repetition when you hear more.The Yankees look horrendous right now. With losses in nine of their last 11 and 15 of their last 20, they may be the coldest team in baseball. After the way the Red Sox rallied to win in 10 innings F…