Ozil moved to Arsenal from Real Madrid in 2013 and is the highest paid player in the Premier League club's history, but he has not played all season and does not appear to be in coach Mikel Arteta's plans.
A study carried out in Scotland concluded professional footballers are around three and a half times more likely to die of dementia than the general population.
Reports in the British media have said that the 34-year-old is leading talks on behalf of his team mates against a proposal by the second-tier club to defer the wages of players by 50%.
Wayne Rooney made a winning debut for Derby on Thursday as he had a hand in both goals in a 2-1 victory over Barnsley in England's second-tier League Championship.
MLS: Wayne Rooney's American sojourn ends as DC United lose to Toronto FC; Atlanta United advance to semis of Playoffs
Former England and Manchester United star Wayne Rooney was routed in his Major League Soccer farewell match on Saturday as Toronto FC ripped DC United 5-1 in the first round of the playoffs.
Watch: 'End gun violence' yells MLS player Alejandro Bedoya into TV microphone after mass shootings in Dayton and El Paso
Philadelphia Union captain Alejandro Bedoya makes a statement following mass shootings after scoring a goal against DC United
Wayne Rooney insists his future remains in MLS amid concerns about his 'unsettled' family in Washington
Wayne Rooney stressed Tuesday that his future remains in Major League Soccer amid new suggestions his family are unsettled in Washington and want him to return to England before his current contract expires
Wayne Rooney scored from within his half for DC United against Orland City in Major League Soccer. He has previously scored long range goals for Everton and Manchester United against West Ham in the Premier League.
MLS 2019: Wayne Rooney scores hat-trick as DC United thrash Real Salt Lake 5-0 to continue unbeaten run
Former England international Wayne Rooney registered his first three goals of the new season and also his first hat trick since signing on with Major League Soccer in July 2018
Argentine midfielder Acosta gave DC United a 2-0 edge in the 58th minute right-footing a bouncing shot to the left of Atlanta goalkeeper Brad Guzan
Former England captain Wayne Rooney, who helped revitalise one of Major League Soccer’s original superpowers when he joined D.C. United last year, still feels he possesses the quality to compete in the Premier League.
Wayne Rooney's public intoxication arrest at Dulles International Airport was due to 'mixing alcohol with sleeping pills'
Wayne Rooney, who was returning from a promotional trip to Saudi Arabia, was charged with misdemeanor public intoxication and swearing in Loudon County, and released on his own recognizance before paying a $25 fine and court costs.
Major League Soccer must be a 'selling league' as expansion of tournament looms, says commissioner Don Garber
Major League Soccer (MLS) will look at expanding beyond 28 teams, said Commissioner Don Garber in his state of the league address on Friday, but a shift away from buying talent to producing and selling it will be key to future growth.
International friendlies: Wayne Rooney deserves England send-off, says captain Harry Kane ahead of USA clash
England captain Harry Kane has given his backing to the honouring of former skipper Wayne Rooney in an international friendly against the United States next week
Wayne Rooney to come out of retirement for a final one-off appearance in a friendly against United States
Wayne Rooney is to come out of England retirement for a final one-off appearance against the United States in an international friendly at Wembley this month, the Football Association announced Sunday.
MLS: Talismanic striker Wayne Rooney spearheads DC United comeback from depths of league table to playoff spot
The arrival of Wayne Rooney at DC United has coincided with an uptick in the team's fortune, with DC currently on a nine-match unbeaten streak that has seen them qualify for the playoffs.
Major League Soccer: Wayne Rooney scores twice as DC United secure place in playoffs with win over New York City FC
Former Manchester United and England Star Wayne Rooney scored twice to push D.C. United to a 3-1 victory over New York City FC and into the MLS Cup playoffs on Sunday.
Premier League: Former captain Wayne Rooney calls on United players to take responsibility, says Jose Mourinho is 'easy target'
Former Manchester United captain Wayne Rooney has asked United players to speak up and take responsibility for their actions, saying that manager Jose Mourinho is bearing the brunt of criticism unfairly.
Major League Soccer: DC United star sriker Wayne Rooney says he didn't come to North America 'on a holiday'
With Major League soccer still buzzing over Wayne Rooney's late-game exploits in DC United's Sunday win over Orlando, the former England star said Tuesday he's not in North America on holiday.
Wayne Rooney scores first goal for DC United in win against Colorado Rapids, breaks nose in set piece collision
Wayne Rooney had a memorable night for a couple of reasons, with the English striker breaking his nose and scoring his first goal in a DC United shirt to take the bottom placed team to a 2-1 victory over Colorado Rapids.