Let's take a look at who will be wearing what number at Arsenal during the 20/21 season and what numbers are likely to become free.
Arsenal's u23 clash against Manchester United has been moved to a new date and will now take place the day after it was originally scheduled.
Marcelo Flores trained with the Arsenal first team and scored the most outrageous which was then shared by his father, Ruben.
The Arsenal academy kicked off the new competitive season with a win over Ipswich Town in the EFL Trophy, with a goal from summer signing George Lewis.
Alfie Matthews posted a farewell message to Arsenal on Friday, as he leaves the club after 11 years with the academy.
Arsenal loanee Ben Sheaf won Doncaster Rovers' Goal of the Month award for February, after scoring his first goal in senior football.
Thomas Reis described Jordi Osei-Tutu as a huge talent, suggesting VfL Bochum could start the Arsenal loanee alongside Simon Zoller - before their game's postponement.
Tyreece John-Jules returned to Arsenal this week to begin his injury rehabilitation, ending his loan spell at Lincoln City early.
Before the Premier League postponed the Manchester City clash with Arsenal on Wednesday, five academy players were in training with the first team.
Joseph Olowu played well again on Friday against St. Patricks, despite an injury scare and another disappointing result for Cork City.
On-loan Arsenal midfielder James Olayinka is in contention to return from injury this weekend against Mansfield, according to a report.
Thomas Reis praised Jordi Osei-Tutu for his performance against Sandhausen last weekend but admits there's competition for starting places.
Tyreece John-Jules is very unlikely to play again this season, according to the Lincoln City manager, after suffering an injury in a friendly.
Daniel Ballard made an encouraging return to the pitch on Tuesday, after a knee injury put him out for just over six months.
Jordi Osei-Tutu got his first start in over three months for VfL Bochum on Sunday, and he made full use of it with a goal and an assist.
Zak Swanson thinks he did well against 'one of the best players in the league' in Leroy Sane, playing for the Arsenal u23s on Friday night.
Joseph Olowu helped Cork City keep a clean sheet against Finn Harps for their first win of the season on Friday, earning praise from the fans.
Tolaji Bola and Zech Medley both trained with the Arsenal first-team on Wednesday, amid Mikel Arteta's left-back shortage.
Ben Sheaf scored his first professional goal and made two more starts for Doncaster Rovers this week, read on for a report on the performances.
On Saturday, Jordi Osei-Tutu returned to the pitch exactly two months after his last appearance for VfL Bochum, helping them to a late victory.
Arsenal youngster Malcolm Ebiowei joined Rangers in a permanent move on Thursday, after at least one trial at a Premier League club.
Arsenal academy youngsters Brooke Norton-Cuffy and Zach Awe helped the England u16s keep a clean sheet against Denmark on Wednesday.
Kelechi Nwakali has his work permit sorted and is in full training with the SD Huesca squad, with the plan to integrate him into the first team this season.
Jordi Osei-Tutu rejoined the VfL Bochum squad for the first time in almost two months on Monday, making the bench against VfB Stuttgart.
Robbie Burton is set to join Dinamo Zagreb from Arsenal on a permanent deal, with only the official announcement left to come.
Ben Sheaf scored his first professional goal for Doncaster Rovers on Saturday, and it was a very impressive effort to kickstart his scoring career.
Tyreece John-Jules is on the sidelines for the second time in his brief spell with Lincoln City so far, this time with a toe injury.
Even though he couldn't help them avoid a late defeat, Arsenal loanee Joseph Olowu earned praise for his Cork City debut on Friday.
Ben Sheaf is proving he doesn't deserve some of the recent criticism he's facing, coming back into the team to perform well against Bolton.
Young defender Joseph Olowu signed for Cork City on loan from Arsenal on Thursday, agreeing on a deal lasting until June.
Omari Hutchinson provided four assists in three appearances for the England u17s in his first link-up with his country over the last week.
Arsenal youngsters Omari Hutchinson and James Sweet are with the England u17s in preparation for the UEFA u17 Euro elite round qualifiers next month.
Doncaster Rovers took two players on loan on transfer deadline day, creating an interesting problem for the club currently looking after Arsenal's Ben Sheaf.
Matthew Smith received a nomination for the PL2's January Player of the Month award on Tuesday, after a few impressive performances.
Doncaster Rovers fans are finally warming to Ben Sheaf, after some good performances in recent matches for the Arsenal loanee.
James Olayinka is in a protective boot and appears to be back at Arsenal already, after picking up an injury on his Northampton debut.
Newcastle United officially confirmed the signing of Stan Flaherty from Arsenal this weekend, as expected after his trial with the club.
Tyreece John-Jules explained to reporters why he wanted to go on loan this month, after scoring his first goal for Lincoln City at the weekend.
After celebrating his loan extension with Doncaster Rovers earlier this month, it's back to the grind for Arsenal man Ben Sheaf.
Tyreece John-Jules scored one and made one goalline clearance for Lincoln City as they won 1-0 against Blackpool on Saturday.