Intro:

John Isner and Sam Querrey win their first round matches at the Madrid Open on Monday (4th May).

Script:

The Madrid Open got underway on Monday, with John Isner, one of five Americans in the main draw, up against Adrian Mannarino of France in the first round.

The big serving 16th seed fired down a total of 13 aces in the match and never faced a break point.

Nevertheless he was forced to wait for a tie break in order to finally seal the first set against the Frenchman.

The second proved a little easier, as he closed out the match 7-6 6-4 and can now look forward to a second round match against either Thomasz Bellucci or Jeremy Chardy.

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Meanwhile, another American, Sam Querrey, faced a tough battle against the Thanasi Kokkinakis.

The Australian teenager lost the first set 6-4 but showed some impressive resolve when it mattered most and battled to take the second set on a tie break.

Querrey was able to steady his nerves as the match went into the decisive third set.

He eventually secured the win after more than two hours on court, 6-4 6-7 6-3.

Kokkinakis proving a much more difficult hurdle to overcome than origianlly expected for the American.