Marko Arnautovic set to seal £23m West Ham record deal tomorrow after passing medical

West Ham will complete the club record signing of Marko Arnautovic from Stoke tomorrow after the Austrian forward passed his medical.

The Hammers have agreed to part with £23million for Arnautovic, a fee that eclipses the £20.5m they paid Swansea for Andre Ayew next season. The 28-year-old is expected to fly out with Slaven Bilic's squad next week for their three pre-season games in Germany.

Arnautovic completed his medical in London on Friday with no issues raised and the Hammers are set to announce his arrival tomorrow to conclude an impressive week in the market for Bilic's side.

The week had begun with Joe Hart's loan arrival from Manchester City before Thursday saw an agreement between Bayer Leverkusen and West Ham for the transfer of Javier Hernandez.

The Mexican striker and Hernandez are set to form a formidable attacking quartet rounded out by Manuel Lanzini and Michail Antonio, giving Bilic the pace and dynamism in attack he felt was lacking last season.

With Pablo Zabaleta having also arrived on a free transfer earlier in the window West Ham will feel that they have accomplished their most pressing business in the summer market, though with over a month until the window shuts the Hammers will remain open to making further additions.

Meanwhile Middlesbrough have agreed a deal for goalkeeper Darren Randolph, who had fallen down to third place in the pecking order, subject to medical and personal terms.