Credit: imagn images via Reuters ConnectA six stroke lead entering the final round going head-to-head against the World Cup isn’t a great recipe for success. So for golf’s US Open and NBC, their Sunday final round viewership numbers have to be seen as something of a success. While Wyndham Clark started the day with that huge advantage, he had Scottie Scheffler in the final group with him, pursuing the career grand slam. However, it was Sam Burns…