Kyle Edmund beaten by Sam Querrey in Mexican Open
British number three Kyle Edmund was beaten 6-2 4-6 6-3 by American world number 40 Sam Querrey in the Mexican Open first round.
Edmund, 22, ranked five places lower then Querrey, lost his only other top-level meeting with the 29-year-old at Eastbourne in 2014.
Novak Djokovic will play Juan Martin del Potro in round two after beating Slovakia's Martin Klizan 6-3 7-6 (7-4)
Second seed Rafael Nadal had a 6-4 6-3 win over Germany's Mischa Zverev.