While Sergio Perez is not always hitting the Red Bull criteria to retain his seat, a reluctance to sign Carlos Sainz and the lack of alternatives could save him, so says BBC F1 correspondent Andrew Benson.

Sergio Perez races to finalize his Red Bull F1 contract after a disappointing performance in the Emilia Romagna Grand Prix.

Red Bull have offered a new contract to keep Sergio Perez but have rejected his counter-offer, according to reports from Mexico. The Mexican driver has impressed this season, after entering the year under intense scrutiny to keep hold of the second Red Bull.