Lorenzo quickest in second session

The Yamaha rider only needs ninth place in tomorrow's Malaysian Grand Prix to clinch the title, and he will go into qualifying in strong form after edging out Casey Stoner in this morning's session.

Stoner (Ducati) had been on top for the majority of the hour, but a late 2m01.949s lap from Lorenzo saw the Australian beaten by just 0.022 seconds.

Friday pacesetter Valentino Rossi completed the top three on the second Yamaha.

Honda's Andrea Dovizioso was fourth, but until the closing moments the fastest Honda had been Gresini rider Marco Simoncelli, who held third for a while and ended the session still in fifth.

Alvaro Bautista maintained his strong Friday form to take sixth for Suzuki - but his team-mate Loris Capirossi's participation in qualifying could be in doubt after a big crash for the Italian veteran at the start of practice.

Capirossi had a violent high-side at Turn 12 on his very first lap of the session, landing heavily. He struggled to get up and had to be taken away by stretcher.

Randy de Puniet was seventh for LCR Honda, with Tech 3 Yamaha duo Colin Edwards and Ben Spies sandwiching Aspar Ducati's Hector Barbera in eighth and 10th, and Nicky Hayden showing slightly better form than yesterday to take the second Ducati to 11th.

Pos  Rider             Team               Time       Gap
 1.  Jorge Lorenzo     Yamaha             2m01.949s
 2.  Casey Stoner      Ducati             2m01.971s  + 0.022s
 3.  Valentino Rossi   Yamaha             2m02.192s  + 0.243s
 4.  Andrea Dovizioso  Honda              2m02.311s  + 0.362s
 5.  Marco Simoncelli  Gresini Honda      2m02.543s  + 0.594s
 6.  Alvaro Bautista   Suzuki             2m02.617s  + 0.668s
 7.  Randy de Puniet   LCR Honda          2m02.638s  + 0.689s
 8.  Colin Edwards     Tech 3 Yamaha      2m02.774s  + 0.825s
 9.  Hector Barbera    Aspar Ducati       2m02.796s  + 0.847s
10.  Ben Spies         Tech 3 Yamaha      2m02.818s  + 0.869s
11.  Nicky Hayden      Ducati             2m02.849s  + 0.900s
12.  Aleix Espargaro   Pramac Ducati      2m02.921s  + 0.972s
13.  Hiroshi Aoyama    Interwetten Honda  2m03.069s  + 1.120s
14.  Marco Melandri    Gresini Honda      2m03.456s  + 1.507s
15.  Mika Kallio       Pramac Ducati      2m03.711s  + 1.762s
16.  Loris Capirossi   Suzuki