Chelsea manager Xabi Alonso has praised Emiliano Martinez following the goalkeeper's seamless transition into the squad on his first appearance for the club, expressing confidence that his presence will prove invaluable throughout the campaign.

Martinez completed a move from Aston Villa to Stamford Bridge, confirmed on Sunday morning, signing a three-year contract before going straight into the starting lineup for the home clash against Brighton and Hove Albion.

The Argentine showed no sign of nerves on debut, producing a string of sharp reaction saves as Chelsea ran out 4-3 winners. Romeo Lavia, Pedro Neto, Joao Pedro, and Cole Palmer all found the net in a thrilling contest.

Alonso on Martinez's instant impact

Speaking on chelseafc.com, Alonso said he had spoken with the 33-year-old the day before the match and was struck by how composed the World Cup winner appeared heading into the game.