By Rory Carroll SAN FRANCISCO (Reuters) – The U.S. men’s soccer team on Sunday sent an open letter to members of Congress urging them to pass stricter gun laws following a surge in mass shootings while NBA players and coaches also raised the issue ahead of Game Two of the Finals. A shooting in Philadelphia left at least three people dead and 11 others wounded, police said on Sunday in the latest case of gun violence in the United States after recent massacres in Texas, New York and Oklahoma where dozens died. “Our ability to affect change is limited, but yours is not,” the U.S. men’s team said…