The Hammers announced via their official website at the weekend that Lanzini, 26, fractured his collarbone in the 3-0 defeat away at Burnley on Saturday and has since undergone surgery.
Lanzini is now likely to be sidelined for some time and ex-England international Mills claims that the fragile nature of the collarbone means that it could be a lengthy recuperation period for the Argentine.
“It is, isn’t it? They need that little bit of creativity in there as well. It is a blow,” Mills told Football Insider.
“It is a difficult injury in football because the clavicle and collarbone is quite fragile at times. There’s an awful lot of movement that goes through the top half of the body, shoulder charges, holding people off.
“They’ll have to make sure that is well and truly fixed.”
Lanzini has not been in great form for West Ham and no matter whether you like the Argentine or not, he is bound to be missed by Manuel Pellegrini. In times like this, when you cannot buy a win, you need all of your players ready and available to play. However West Ham have injuries all over the squad at the moment with Lukasz Fabianski, Lanzini and Michail Antonio among those sidelined while there are doubts about Mark Noble ahead of the match against Tottenham. Winston Reid is on the comeback trail but it remains to be seen what kind of role he will play – or if he plays at all this season. West Ham have so many issues and Pellegrini needs to dig deep to try and solve them. One thing he must do is use the Under-23s squad. West Ham’s Under-23s have been superb this season, so why is no one getting the call-up? Some of those players deserve a shot with how badly the first-teamers are performing. Nathan Holland, anyone?