Table:
text: 2008 Grand Prix motorcycle racing season
Grands Prix
Grands Prix
Round Date_ Grand_Prix Circuit _125cc_winner _250cc_winner MotoGP_winner Report
1 9 March Qatar Grand Prix ‡ Losail Sergio Gadea Mattia Pasini Casey Stoner Report
2 30 March Spanish Grand Prix Jerez Simone Corsi Mika Kallio Dani Pedrosa Report
3 13 April Portuguese Grand Prix Estoril Simone Corsi Álvaro Bautista Jorge Lorenzo Report
4 4 May Chinese Grand Prix Shanghai Andrea Iannone Mika Kallio Valentino Rossi Report
5 18 May French Grand Prix Le Mans Mike di Meglio Alex Debón Valentino Rossi Report
6 1 June Italian Grand Prix Mugello Simone Corsi Marco Simoncelli Valentino Rossi Report

Question: Name the 125cc winner with the Estoril circuit in the 2008 Grand Prix motorcycle racing season?