Ryo Miyaichi has signed for German 2. Bundesliga club FC St. Pauli, while Semi Ajayi has completed a move to Cardiff City.
Ryo joined Arsenal in January 2011 and made a total of seven first-team appearances for the club.
The 22-year-old Japanese winger also featured in a number of pre-season games for the Gunners, scoring in a 3-1 victory over Nagoya Grampus in the Asia Tour 2013 in front of a home crowd.
Ryo, who has represented Japan twice at senior level, had loan spells with Feyenoord, Bolton Wanderers, Wigan Athletic and FC Twente while with the Gunners.
Ajayi joins the Bluebirds after impressing on loan with the club in the final weeks of the 2014/15 season.
He featured four times for Cardiff's under-21 side, scoring a brace on his debut, and featured in the first-team squad for the club’s final league match of the season, away to Nottingham Forest.
Ajayi joined Arsenal from Charlton Athletic’s academy in 2013 and was a regular for the under-21s last term. The Nigeria Under-21 international was also involved in a number of first-team matchday squads during his time at the club.
EveRyone at Arsenal would like to thank both Ryo and Semi for their contributions to the club, and wish them well for their future careers.