British tennis number one Jack Draper has suffered a shock second round exit at the Miami Open.

The sixth seed, from Sutton, lost in straight sets to Czech 19-year-old Jakub Mensik.

It comes less than a week after winning his first ever ATP 1000, beating Holger Rune in Indian Wells.

Fellow Brit Jacob Fearnley is also out after losing by the same margin to German Alexander Zverev.