The 16-year-old trained with the Blues' first-team squad yesterday as we prepared for this evening's clash with the Danish side, and has subsequently been included on a youthful substitutes' bench by head coach Enzo Maresca.

If Walsh makes it onto the pitch against Copenhagen, he will become the second-youngest player to feature for the men's team in our history. And here's what you need to know about the youngster...

How old is Reggie Walsh?

Walsh has established himself as a regular in our Under-18s side this season, but he only celebrated his 16th birthday earlier in the campaign. He was born on 20 October 2008 and grew up a stone's throw away from Stamford Bridge in Fulham.

What position does Reggie Walsh play?

An intelligent and confident player in possession, Walsh has been regularly used as a midfielder in our Academy sides and can provide a varied threat in the final third.

How long has Reggie Walsh been at Chelsea?

Walsh joined the club at the age of seven and has progressed through our development centre and the Academy ranks at Cobham.

What is Reggie Walsh's record for our Academy teams this season?

He made his Under-18 Premier League debut on the opening day of the campaign against Brighton and has featured a further ten times in that competition. He also featured three times in this season's FA Youth Cup and netted against Merstham and Manchester United.

He made his Under-21s debut earlier in the campaign when he featured as a second-half substitute in a victory over Manchester United.

What country does Reggie Walsh represent?

Walsh has represented England at Under-15, Under-16 and Under-17 levels.

What squad number does Reggie Walsh wear?

Walsh has been handed the No.81 shirt for his involvement in the men's side.