Mark Webber of Red Bull posted the quickest lap in an abbreviated and wet final practice session Saturday at the Canadian Grand Prix.

Webber's best lap at 4.361-kilometre Circuit Gilles Villeneuve was one minute 17.895 seconds.

Adrian Sutil of Force India was second fastest at 1:18.248, followed by defending race champion Lewis Hamilton's Mercedes at 1:18.732.

Ferrari's Fernando Alonso was next in 1:18.977, Formula One leader Sebastian Vettel of Red Bull was fifth in 1:19.131 and Nico Rosberg of Mercedes was sixth in 1:19.457.

The scheduled one-hour session was reduced to 30 minutes so a barrier along the track could be repaired after a crash during a support race.

That ate up some valuable information-gathering time for the 11 teams ahead of the early-afternoon qualifying session.

Most of the top drivers waited until the final five minutes to go onto the track.

Rosberg, a wire-to-wire winner at Monaco two weeks ago, will be seeking a fourth straight pole position.

The track was wet from overnight rain and a few drops were still falling as the cars went out. Warmer weather with a only a small chance of rain is forecast for the race on Sunday.

Race stewards announced that Webber and Valtteri Bottas of Williams were reprimanded for ignoring a yellow flag during practice on Friday. The flag went up after Pastor Maldonado crashed his Williams.