Sauber is eyeing Ferrari Driver Academy member Charles Leclerc as a its potential reserve driver for the 2017 season.
French hopeful and GP3 champion Leclerc enjoyed a bout of F1 experience last season, having taken part in four practice sessions with Haas last year.
While Antonio Giovinazzi was drafted in last week by Sauber to replace the then still-recovering Pascal Wehrlein, the Italian has already been named as Ferrari's back-up man.
Wehrlein was back in action this morning with Sauber before Marcus Ericsson took over after the lunch break.
Leclerc will be graduating to GP2 this year, tackling the competitive series with prime Italian outfit Prema.
GALLERY: F1 drivers' wives and girlfriends
Keep up to date with all the F1 news via Facebook and Twitter
Oliver Bearman left Bahrain convinced Haas had thrown away a genuine chance of points after…
Valtteri Bottas, Cadillac (DNF) – 3/10 Bottas spun out in the opening laps of the…
Audi is turning the Singapore night into a canvas of its own, unveiling a striking…
Michael Andretti was born into this world on this day, 64 years ago. An impressive…
Racing Bulls turned a chaotic Bahrain Grand Prix into a points bonanza, with Liam Lawson…
Fernando Alonso delivered to Aston Martin its best result of the 2026 season in Sepang,…