Alonso sprang a surprise by naming Martinez in the starting line-up - less than four hours after his £7.5m move was confirmed by the club. It is a lifeline for Martinez, who turns 34 next week and fell out of favour at Aston Villa following a failed move to Juventus and the arrival of Japan's Zion Suzuki as Unai Emery's first-choice keeper. The World Cup winner's every catch was cheered on by the Stamford Bridge faithful during an assured display in goal, though he was unlucky to concede two of Brighton's three goals, his save landing on the feet of Yalcouye for the opener and then getting undone by Joao Pedro's own goal.