Sauber 'expected too much' of Heidfeld return

Nick Heidfeld shouldn't feel down after being comprehensively outpaced by his teammate on his return to formula one, according to team boss Peter Sauber.

The German, who has been test driver with Mercedes and then Pirelli for most of 2010, was disappointed in Singapore on Saturday to significantly trail the pace of the Swiss team's regular rookie Kamui Kobayashi.

Heidfeld, 33, was particularly unhappy with Saturday night's result, having looked a match for Kobayashi under the artificial lights until the decisive knockout session.