That’s according to Argentinian journalist Cesar Luis Merlo.
The La Liga giants have been looking to replace Neymar following the Brazilian’s £200m transfer to PSG earlier this month.
Liverpool star Coutinho is their top target and Barca could be set to table a new £138m bid, according to Sky Sports reporter Kaveh Solhekol.
But they may move for Lanzini and former Manchester United star Angel Di Maria as well.
Cesar Merlo – who works for Argentinian site TYCSports – tweeted: “Barcelona has serious interest in signing Angel Di Maria and Manuel Lanzini.”
The Hammers star has impressed for Slaven Bilic’s side since joining permanently from Al Jazira Club, scoring eight goals last season and posing a constant threat to opponent’s defence.
His impressive dribbling skills also caught the interest of Liverpool and Arsenal, but Bilic has insisted his midfield wizard will remain at the London Stadium.
“I am sure he [Lanzini] is going to stay with us,” he said.
“I said it last week when we spoke out about it before the Manchester United game.
“He broke into the Argentina team, he got a call-up for the game in September so he knows that if he plays for West Ham he has a chance to improve, sign a better contract with West Ham and play for Argentina. He is very happy.”
