Thomas Berdych was made to work against Nicolai Davydenko in the opening day of the Barcelona Open Banc Sabadell, coming through in three sets.

Berdych was the highest seeded to play on Monday in the ATP 500 tournament in Barcelona, and he was off to a really tough start drawing Russian and former top 10 ranked Nicolai Davydenko in the first round. 

The Czech was constantly under pressure in the first set and rightfully lost it 6-3 in front of a pumped up Davydenko who played really well.

However, Berdych came out in the second set much stronger, improving his game dramatically, and eventually took charge of the game. 

He broke early in the second set, and then in the middle of the third to seal a hard fought victory 3-6 6-3 6-4 and a ticket to the second round of ATP Barcelona.

The ATP 250 tournament, the BRD Nastase Tiriac Trophy in Bucharest, also kicked off yesterday but no noticeable shocks occured.

However, Jarko Nieminen didn't have it all his own way against Evgeny Donsky. Nieminen had to come through in a tiebreak decider in the third set to qualify. It is the third time in a row Nieminen has been involved in a third set tiebreak but he showed great mental strength to come through a tough battle.

In addition Gael Monfils advanced untroubled by Filipo Volandri and one of the favourites in Barcelona, Key Nishikori, made little work showing Olaso-De La Rica the exit.

Both David Ferrer and Rafael Nadal are due to start their tournaments in Barcelona today after receiving a bye for the first round.

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