By Madison Williams The only No. 1 seed left in the tournament and the highest-seeded team remaining highlight the field in Friday’s action. The second day of Sweet 16 games in the men’s basketball NCAA tournament will take place on Friday, March 25. Four of the Elite 8 slots were filled on Thursday night. No. 4 Arkansas upset the No. 1 overall seed Gonzaga. No. 2 Villanova took down No. 11 Michigan. No. 2 Duke beat No. 3 Texas Tech in a close game. And, finally, No. 5 Houston upset No. 1 Arizona to finish off the night. Only one No. 1 seed remains in the bracket: Kansas. The Jayhawks will tak…