Sure he can cover at right back as well?
I really hope you are wrong. Stones is useless at right back, barring against Brentford.He's played there a few times.
More than likely frees up Stones to cover right back more often (maybe even defensive mid with Phillips out) and Ake to cover left back more often with Cancelo going to the right.
Hadn’t heard of him myself but found this interesting little article.
Bundesliga | Manuel Akanji: Who is the Borussia Dortmund and Switzerland defender hailed by Giorgio Chiellini?
Borussia Dortmund's Manuel Akanji has the brawn and the brains to thrive at the very highest level for years to come - and that's just the opinion of legendary Italy defender Giorgio Chiellini. bundesliga.com profiles a centre-back with some very impressive career numbers...amp.bundesliga.com