Arsene Wenger has decided to deploy three at the back for the clash at the Riverside tonight.
Arsenal are desperate for a win after a poor run of form that has seen them slump to seventh in the Premier League table
The Gunners boss has also opted to use the physicality of Granit Xhaka, Rob Holding and Olivier Giroud.
And Neville reckons it is because he reckons his squad is weak compared to other teams in the top flight.
Six Arsenal players dropped against Middlesbrough Mon, April 17, 2017
Click through the gallery to reveal the six players dropped by Arsene Wenger against Middlesbrough. Did they deserve it…?
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"I don’t know if it’s about keeping up with the modern managers," he told Sky Sports.
"Ultimately he’s changed tonight and explained that he’s identified they are weak physically. They need height in the team.
"Every team i going to lump it into the box with set pieces and long kicks forward.
Gary Neville claims Arsene Wenger now knows his squad is physically weak
"The pattern of beating Arsenal is pretty much set: be physical against them.
"What he’s done is react to that eventually.
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"Over the last two to five years you could argue that my biggest disappointment is the trust he’s placed in some of the players, not dealing with he physical element of it and beefing up his players so they have a robustness to them."