The Chile international is said to be fully fit but was not part of the Gunners' travelling party, amid ongoing links with a move away from the club.
Arsenal boss Arsene Wenger has made one change to the side that earned a goalless draw at Stamford Bridge in the EFL Cup four days ago, with Petr Cech returning between the sticks in place of David Ospina.
Former Bournemouth loanee Jack Wilshere is among the visitors' starters this afternoon, having shaken off an ankle injury sustained in the stalemate with Chelsea in midweek.
The Cherries have have failed to win any of their six previous encounters with Arsenal, conceding at least twice in each of those games.
Bournemouth: Begovic; Francis, S.Cook, Ake, Smith; Ibe, L.Cook, Gosling, Daniels, Fraser; Wilson
Subs: Boruc, Simpson, Surman, Arter, Pugh, Mousset, Afobe
Arsenal: Cech; Chambers, Holding, Mustafi, Bellerin; Maitland-Niles, Wilshere, Xhaka; Iwobi, Welbeck, Lacazette
Subs: Ospina, Kolasinac, Mertesacker, Elneny, Ramsey, Walcott, Nketiah
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