For the second week in row, a new tournament on the PGA Tour will tee off. This time, it's the 3M Open, which will be played at TPC Twin Cities outside Minneapolis.This isn't the first PGA Tour event that 3M has sponsored. The company also had naming rights to the 3M Championship, a Champions Tour event that concluded last year and had beenplayed at TPC Twin Cities since 2001.It will be tough...