By Tzvi Machlin A new Saudi-backed Super Golf League has been attempting to poach some of the top golfers in the world from the PGA Tour. But will two-time major winner Dustin Johnson join the upstart league? In a statement released on Sunday, Johnson dismissed the speculation and reaffirmed his commitment to the PGA. He said that while he sees areas where the PGA Tour can improve, he’s happy for the opportunity to keep playing. “Over the past several months, there has been a great deal of speculation about an alternative tour; much of which seems to have included me and my future in professio…