William Gallas says he can't 'understand' why Arsenal forked out £50million to buy Ben White this summer.
The former Brighton defender signed a five-year deal with the Gunners after impressing Mikel Arteta during his loan spell with Leeds and his 2019-2020 campaign with the Seagulls.
However, Gallas has questioned Arsenal's logic after Manchester United were able to purchase the likes of Raphael Varane for less.
Manchester United and Real Madrid agreed agreed a £42m fee, including £34m up front and £8m in add-ons for Varane .