Nalbandian angry with early start
David Nalbandian hit out at organisers of the Monte Carlo Masters after struggling to overcome Italian Andreas Seppi 7-5 7-5 in the second round.
The Argentine, a semi-finalist at the Australian Open earlier this year, was unhappy with his 10am start.
"It's ridiculous to play at this time," said the third seed.
Meanwhile, countryman Guillermo Coria saved four match points and fought back from 5-1 down in the second set to beat Paul-Henri Mathieu 1-6 7-6 6-4.
Coria, who has reached the last three finals of this event, could not get going in a one-sided opening set and then lost the first four games of the second.
But the sixth seed fought back to take the second set 8-6 in a tie-break and then edged the decisive set to book his place in the third round.
Swiss top seed and world number one Roger Federer eased past Alberto Martin of Spain 6-0 6-1.
The seven-time Grand Slam champion has never been beyond the quarter-finals at Monte Carlo.
Title holder Rafael Nadal was equally impressive, crushing wild card Jean-Rene Lisnard, who beat Britain's Andy Murray in the first round, 6-4 6-1.
Juan Carlos Ferrero, winner in 2002 and 2003, advanced with a 6-1 6-2 demolition of Argentine Juan Ignacio Chela.