The 24-year-old is one of the best midfielders in Europe and has been playing well for Croatia at the ongoing World Cup in Russia.
Kovacic has been on the books of Madrid since the summer of 2015 when he joined from Italian club Inter Milan for a transfer fee reported by The Daily Mail to be worth £25 million.
During his time at Madrid so far, the former Dinamo Zagreb star has won La Liga once and the Champions League thrice.
Some West Ham fans on Twitter are excited at speculation linking the London club with a move for Madrid midfielder Kovacic in the summer transfer window, as shown in the following posts.
If this is true then yes please!— Martin Hillman (@martin_hillman) July 3, 2018
Top player mate I’ve been watching him— BLUEMAN™️ (@bluemanmanc1) July 3, 2018
Yes, but doubt he’ll leave with no CL to offer— IronsmanJP (@IronsManJP) July 3, 2018
Without doubt I’d be very happy!— FromnearMoscow (@FromnearM) July 3, 2018
I was always very surprised that the links Bilic had with Croatian players wasn’t exploited more while he was manager.
World class midfielder.. not sure he'd join us!— Giesen (@Giesen12) July 3, 2018
This would be an amazing buy— Matthew (@McCopie) July 3, 2018
Love to see this but can’t see it— costahammer (@costahammer) July 3, 2018