The Gunners’ 3-1 defeat at Chelsea on Saturday has left them with little hope of chasing down their London rivals at the top.
With another title bid fading already, Arsenal legend Henry has identified where the club needs to strengthen.
Injuries have repeatedly had a major negative effect on the squad for many years.
But the key areas in the team which need upgrading for three-time Premier League winner Henry are in goal, defence and up front.
Thierry Henry has identified where Arsenal need to make changes going forward
Their non-stop injuries had to be taken care of
Olivier Giroud has come back into the picture, moving Alexis Sanchez back out to left-wing, but Arsenal’s all-time top scorer says the Frenchman needs more support with Arsene Wenger unable to really rotate.
“I was asked what Arsenal would need to change for next season to win the title,” Henry told RMC Sport.
“So I said that their non-stop injuries had to be taken care of.
“They needed a solid spine for the team, they had to buy a defender, a goalkeeper and another striker to let Olivier rest, and take on a starting striker role.”
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Arsenal's January-February form ranked from best to worst since 2007
Shkodran Mustafi was bought for £35million last summer, but injuries to him and Hector Bellerin have disrupted the defence, while form has also been inconsistent.
Petr Cech’s performances have also come under scrutiny, with some fans calling for David Ospina to replace him.
And while Danny Welbeck can also play as Arsenal’s focal striker, the England international’s fitness and long-term injuries have been ongoing issues.
Arsenal did not sign any senior stars in January, but it appears summer additions are essential.