The Arsenal players were training on Friday ahead of the Premier League game against West Ham United this weekend.
Arsenal will take on London rivals West Ham away from home at the London Stadium on Saturday evening.
The Gunners will head into the match against the Hammers on the back of a 2-0 defeat to Southampton at the Emirates Stadium in the quarter-finals of the EFL Cup.
Arsene Wenger’s side will be determined to bounce back and pick up all three points from the Premier League encounter against West Ham.
The Arsenal players were training on Friday, and among those who attended the session was Krystian Bielik (see photos below).
Bielik was signed by the Gunners from Legia Warsaw in January 2015 for a transfer fee reported by FourFourTwo to be worth £2.7 million.
The 18-year-old, who can operate as a central defender or as a defensive midfielder, has yet to make his Premier League debut for the Gunners.
The youngster has trained with the first team on many occasions, but the teenager does not seem to be close to an appearance in the league.