J.A. Happ (10-4, 4.03 ERA), who is lined up to start against Luis Severino on Saturday, is of interest to the Yankees. So this could be an audition of sorts. They have the goods to get him, but are waiting to see if anyone better becomes available. We’ve covered Happ’s track record of having success against AL East competition — especially Boston — which is a plus. And he’s left-handed, which is another plus. Happ, a No. 3-4 type at this point in his career, is 35 and in the final year of a three-year, $36 million deal. Severino, on the other hand, is making a strong case for starting the All-Star Game and winning the AL Cy Young award. Entering the Toronto series, he’s 13-2 with a 1.98 ERA.