Marco Simoncelli emphasized his status as one of MotoGP's rising
stars by setting the fastest time in the opening free practice
session for the Portuguese MotoGP. The Italian Gresini rider,
who has access to a factory Honda, set his 1m38.032s lap on his
last attempt of the session bumping Repsol ace Casey Stoner down
to second in the process.  Simoncelli's pace will have boosted
him and the team, with the 24-year-old keen to bounce back from
crashing out of the lead in the Spanish Grand Prix last time
out. Dani Pedrosa made it three Hondas out of three at the top
of the order.  World champion and 2011 MotoGP points leader
Jorge Lorenzo was fourth fastest. The Yamaha rider, who has won
every MotoGP race he's started at Estoril, set a time of
1m38.413s about halfway through the 45-minute session and stayed
there until that late flurry of activity from the Honda men.  In
the end, Lorenzo's time was 0.381sec off Simoncelli's ultimate
mark, but his pace was consistent and the Spaniard also
completed more laps than