Emiliano Martinez’s Chelsea arrival may prove to be good news for rookie Mike Penders

Mike Penders has waited two years to make his competitive debut for Chelsea and the most significant thing to happen to the Belgium international ’keeper on the night took place during the warm-up.

It was while he was going through some practice drills ahead of Chelsea’s second-round Carabao Cup tie against Luton Town that news emerged the club had agreed to sign Emiliano Martinez from Aston Villa for £7.5million ($10.2m).

Whether word got through to the 21-year-old that Chelsea had just signed a Premier League veteran and World Cup winner who plays in his position is unknown. Chelsea’s dominance over their League One opponents during the 90 minutes, as they cruised to a 2-0 victory, meant any nerves or disappointment he might have felt were not really tested.

The Chelsea fans were clearly on his side regardless. Most of his key moments involved coping with balls played back to him by team-mates and comfortably handling the frenetic pressing of Luton striker Callum Marshall by passing to a blue shirt in front of him. Every time he did so, he was greeted with a very warm round of applause from those in the home ends. Clearly, just the sight of him in goal instead of Rob Sanchez brought them great relief.

There is still a lot of optimism over what Penders can do long-term for Chelsea regardless of Martinez’s imminent arrival. Chelsea beat a host of top clubs when they agreed a deal to acquire him from Genk in 2024, albeit the signing was only completed last summer. After being an unused squad member at the 2025 FIFA Club World Cup, he spent the 2025-26 season on loan at Strasbourg, where he established himself as one of the best keepers in Ligue 1.

The expectation was that he would get to compete with Sanchez for a starting role at Chelsea in 2026-27, but that has now suddenly changed. His main rival for a berth is going to be Martinez instead, with Sanchez suffering a dramatic change in fortunes.

It was just three weeks ago that Sanchez was talking enthusiastically about the season ahead under new manager Xabi Alonso and spoke with a lot of self-belief that he was going to first choice. “I feel amazing,” he said during an interview with reporters on the pre-season tour . “Xabi has given me all the confidence in the world.”.

The Athletic has consistently reported that Chelsea were not on the lookout for a new keeper during this window, something Alonso appeared to confirm earlier this month when he said he was happy with the choice of Sanchez, Penders and third choice ’keeper Teddy Sharman-Lowe.

Understandably, some people will think that Sanchez’s error-strewn display in the 3-2 win against Fulham is the sole reason things have turned out differently so quickly. Sanchez has bounced back from adversity on more than one occasion since joining from Brighton & Hove Albion for £25m in 2023, so why not give him the opportunity to do so again this time around?

The fact remains he has still been dropped by the last three Chelsea head coaches — Mauricio Pochettino, Enzo Maresca and Liam Rosenior — at times during a season. Out of that trio, only Pochettino did not really bring him back, although a knee injury was a big factor in that.

Sanchez earned a lot of favour within the club for the manner in which he responded to losing his place and particularly his displays under Maresca during the victorious Club World Cup campaign last summer. He continued to play well under Maresca until the Italian’s departure at the start of the year. However, Rosenior’s arrival saw a downturn in form again, and now Sanchez has got off to a bad start under Alonso. Could the club afford a fourth straight season with doubts over whether a ’keeper is in the team or out? Clearly not.

The fact that Martinez, who has played 228 Premier League games for Aston Villa and Arsenal, was available for such a small sum is another part of the equation. The soon-to-be 34-year-old seemed set to join Juventus earlier this month but it fell through. With Aston Villa already refreshing the position by purchasing Zion Suzuki from Parma, Martinez had to find somewhere to move on and Chelsea represent a great opportunity for him to add to his Premier League appearances.

This development should not be taken too badly by Penders. A big factor in Sanchez being kept around was that his experience would buy Penders some time to adjust to the Premier League without too much pressure being instantly put on his shoulders. He maybe a prodigious talent, but throwing him in too early could cause more harm than good.

Penders made his competitive Chelsea debut in the League Cup victory over Luton Town (Richard Heathcote/Getty Images)

Penders is often labelled the ‘next Thibaut Courtois’ due to coming through at the same club side in Genk, having a similar frame and being Belgian. But Courtois had three years on loan at Atletico Madrid before being named Chelsea’s first-choice goalkeeper at 22 in 2014.

One small sign of Penders still being a bit raw came in the Luton game when he flapped at a corner from Liam Walsh under pressure from Gideon Kodua. He looked a little rattled when a second cross followed and Hakeem Odoffin was ajudged to have fouled him.

Alonso still liked what he saw from Penders but suggested afterwards there is also much to learn. “For sure he will have games with more work. But you could see in some moments that he was under pressure, he plays calm,” Alsono said.

“He has security of his football. He didn’t make many saves, but he’s a great project for the future and for the present as well. So we need to go step-by-step. He’s playing in the cup and we need to see (what happens next).”

Now Penders is going to have Martinez act as his mentor, someone who was named Best FIFA men’s goalkeeper award in 2022 and 2024. With all due respect to Sanchez, that is a bit of an upgrade.

Chelsea opted against buying Mike Maignan from Milan in 2025, or consider making offers for Diogo Costa (Porto) or James Trafford (Manchester City) this year, due to not wanting to block Penders’ pathway. Martinez has agreed a two-year contract with an option for another 12 months to move to Stamford Bridge. That alone indicates it is aimed to be for the short-term.

Purchase one of the other three, and you have to give them a much longer deal, therefore providing a more potentially awkward and prolonged changing of the guard for Penders.

As for Sanchez, there are a few days of the window remaining for him to decide what he does next.