Both players could miss up to six weeks of action with muscle injuries. Lanzini suffered a quad injury in training midweek, while Moses was forced off in the first half of West Ham’s draw against Manchester United with a hamstring problem.
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Essentially, West Ham’s top five attacking options are all out.
The Hammers currently sit seventh on the Premier League table and have scored an impressive 25 goals through 15 matches. However, just four points separate the club from 13th place West Brom.
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Slaven Bilic had a dream start to his career at West Ham, but now comes his biggest challenge. Bilic must find a way to grind out results in the busiest part of the season, doing so without most of his top players.
Last season, Sam Allardyce had the Hammers sitting fourth on the table at Christmas, only to stumble down the stretch and finish 12th in May. With the growing injury list, Bilic will try to avoid a similar result.