Lando Norris Tops Piastri in Sao Paulo Practice Session
Lando Norris has outscored Oscar Piastri at each of the previous five grands prix.
The McLaren driver just pipped team-mate and title rival the Australian for the top spot in the final moments of practice at the Sao Paulo Grand Prix.
The British racer, who took the title advantage from his teammate by just one point after taking the win in Mexico City a fortnight back, outpaced the Melbourne-born driver by 0.023 seconds.
Earlier in the session, Oscar Piastri had been the fastest McLaren driver for most of the session before the sprint shootout scheduled for 18:30 GMT.
The Red Bull star, the sole remaining contender in realistic title contention, trailing 36 points behind Norris, finished in P17 as his team followed a different programme.
His teammate Yuki Tsunoda was the only driver to have an incident, though minor, when he lost control at the fourth corner during the early running.
Tsunoda slid over the track edges before sliding over the run-off area, and was lucky to get away with just a minor contact of the fence.
The Ferrari of Lewis Hamilton also lost it, at the very end of the practice, spinning around through the high-speed Mergulho turn before the final bend on to the pit straight.
The seven-time champion ended the session in 19th, trailing team-mate the Monegasque driver.
The McLaren drivers were significantly quicker of the rest of the field, with Nico Hulkenberg's Sauber third fastest, 0.619 seconds slower than Piastri's pace.
Aston Martin's Fernando Alonso was in fourth, with the Sauber of Gabriel Bortoleto fifth from Mercedes' George Russell and Alpine's Gasly and Williams' Carlos Sainz.