Aston Villa have signed Calum Chambers from Arsenal. The 27-year-old, who can play at centre-back or right-back, is the fourth arrival since Steven Gerrard took over as manager, joining midfielder Philippe Coutinho, the left-back Lucas Digne and the goalkeeper Robin Olsen. Chambers, who has signed a three-and-a-half-year deal, has made only five appearances this season, with three of those in the Carabao Cup and his most recent Premier League game coming in late August. The former Southampton player has been at Arsenal since 2014 and his deal was due to expire this summer. Arsenal said Chambers had moved for an undisclosed fee. Arsenal are close to a finalising deal to sign the goalkeeper Matt Turner from New England Revolution. The fee for the USA international is expected to be about £6m with up to £2.5m in add-ons and the intention is that he will join in the summer. The move could be accelerated if Bernd Leno leaves this month but New England are working on the basis that Turner will stay with them. Arsenal have agreed terms with the 27-year-old, who has played his whole career in the US and started 13 of his country’s 22 matches last year. Turner is viewed by Arsenal as cover for Aaron Ramsdale, who joined from Sheffield United last summer and has been preferred to Leno. Ramsdale’s form has restricted Leno to four cup appearances since late August and it appears a question of when, not if, the German leaves. Arsenal have also been pursuing the Juventus midfielder Arthur Melo but their proposal of a six-month loan for the Brazilian was turned down by the Italian club, who asked for any loan to last until the end of next season.