MotoGP championship leader Jorge Lorenzo admitted he thought Cal Crutchlow would be unbeatable in Aragon qualifying.
Lorenzo and title rival Dani Pedrosa ultimately pushed Crutchlow down to third after the Briton had dominated much of the session. Traffic prevented Crutchlow from responding.
"I really thought Cal had made pole," said Lorenzo. "His laptime was really quick.
"Finally with the qualifying tire we improved the laptime by a little, but it was very close."
Qualifying was the first dry session of the Aragon weekend, and Lorenzo said the track was "scary" at first.
"It has been difficult," said the Yamaha rider.
"At the beginning the track was very slippery, very cold. So many crashes. The track was very scary, very dangerous.
"I was getting my pace little by little and improving the bike, because at the beginning we rode three or four seconds slower than at the test here one month ago.
"Finally with the bike improving a little bit and the Tarmac of the track improving, we improved the laptime and finally with the last qualifying tire I pushed 100 percent and I made the pole position by so little.
"It's OK, I'm happy, but tomorrow is the important thing."