In its most impressive win of the season to date, the Lehigh wrestling team won six of ten bouts to upset No. 16 Oklahoma 21-14 in front of 2,719 fans Friday night at Stabler Arena. Senior Robert Hamlin gave Lehigh the lead for good with a 22-7 technical fall in 5:43 over Nolan McBryde at 184, as the Mountain Hawks won the final four bouts to rally for the victory.