As reported by BBC Sport, Lanzini will miss the World Cup after suffering a ruptured anterior knee ligament injury in training.
The 25-year-old attacking midfielder is one of the best players at West Ham, and he did quite well during the 2017-18 campaign, scoring five goals and provided six assists in 23 Premier League starts.
#FuerzaManu @manulanzini— Adrián San Miguel (@AdriSanMiguel) June 8, 2018
All my best wishes for a speedy recovery, Keep being strong and get well soon bro!!
Mis mejores deseos para una pronta recuperación, fuerzas y mucho ánimo chulito pic.twitter.com/pxnIBJRfrR
Blow for West Ham United?
It remains to be seen for how long Lanzini is on the sidelines, although it is likely that he will miss the start of next season, given the severity of his injury.
The attacking midfielder, who earns £70,000 per week as salary according to The Daily Star, is a very important player, and West Ham will hope that he returns to action as soon as possible.