Our first signing of the transfer window is an unknown, 17 year old defensive midfielder from Poland for about £2.4million.

Even though this move has been on the cards since mid-December we still know very little about Krystian Bielik whose transfer was officially announced by Arsenal on Wednesday.

He started his career at youth level with Gornik Konin and then was picked up by Lech Poznań in 2012 to join their youth academy. After putting in a string of impressive performances, Legia Warsaw picked him up for just under £10,000 in August and made his debut shortly after.

He has featured in five Ekstraklasa games, starting two and coming on as a sub in the other three helping the team to secure runners up spot in the league. Now a regular for the Poland U-17s he’s managed three goals in five appearances. Obviously we’re not buying him for his goal scoring ability but it’s nice to know he may be able to chip in.

Bielik is a promising player who has received praise from both Arsene and his previous manager, Henning Berg. However, Berg recently stated, “He can handle himself on the pitch. For his age he is a physical player but he has good skills and ball control. But you’ve got to give him time because to play for Arsenal in the Premier League is a big, big step up.”

After beating Hamburg to his signature I’m looking forward to seeing how he’ll develop at The Arsenal.

It’ll be nice to see whether he makes the bench in the FA Cup this Sunday. Whether he’ll feature in the first team that quickly will depend on how much confidence the boss has in him, but one thing for sure is he’ll feature heavily in the cups next season at least.