The Argentine goalkeeper, who received oxygen on the pitch, was eventually carried off the pitch on a stretcher around 10 minutes after the collision before being taken straight to a local hospital.
Martinez was replaced in the 75rd minute by Belgian goalkeeper Mike Penders, who came on to make his Premier League debut as Chelsea secured a 2-0 win at Everton.
Asked for an update on Martinez’s condition after that hard-fought victory, Alonso told TNT Sports: ‘As far as I know, he left the stadium conscious and right now he’s in the hospital doing precautionary tests.
Martinez collided with Jarrad Branthwaite (Picture: AFP)
Martinez was taken to a local hospital (Picture: Getty)
‘So let’s see, but this is what I know so far.’
On his side’s performance, the Spaniard added: ‘We are very happy with the result and the performance. We needed one of these wins away, very professional, very serious, looking solid. It is a very good win
‘We looked in control of the game. There were moments when we had to defend, especially in the first half, but overall the team looked mature.’
‘We knew what to do in each moment and knew we would have our own moments, and that happened in the second half, and after that we were good with the ball, created chances, conceded not much, and we got the clean sheet.
‘We knew it would be a matter of time but finally we got it.’
