Delray Beach, Florida: Frenchman Adrian Mannarino beat American wild card Jack Sock 6-4, 6-2 in the first round of the Delray Beach Open on Monday.
Mannarino's first win in three matches against Sock this season sent him into the second round where he will face the winner of Monday's only other singles between American Sam Querry and Spaniard Feliciano Lopez, the No. 6 seed.
