Enzo Maresca instructs Reggie Walsh before the Chelsea midfielder came on in the win over Ajax(Image: Crystal Pix/MB Media)

Reggie Walsh became Chelsea's youngest ever player in the Champions League on Wednesday evening with the 17-year-old making his debut in the European competition. The Blues academy star had turned 17 just two days before he was given the chance to run out under the lights at Stamford Bridge, with his side in a commanding position against Ajax.

On 65 minutes, Enzo Maresca turned to Walsh to finish the game for Chelsea and in turn, the midfielder became the second youngest Englishman, with Jack Wilshere holding that title, to play in the Champions League. Those inside Stamford Bridge were understandably excited to see Walsh, who made his senior debut for the Blues in May, coming on as a late substitute in the first-leg of the Conference League semi-final victory away at Djurgarden.

Walsh then started the second-leg and completed the full 90 minutes in SW6 as the west Londoners progressed into the final of the competition. Then followed a cameo appearance away at Lincoln City in the Carabao...