With just two years left, Rice, 23, has turned down Hammers’ offer for an eight-year extension, which would raise his wages to £200,000 a week.
Chelsea and Manchester United have both been linked with a transfer for Rice this summer, with the Premier League giants in need of a top-quality central midfielder.
This week his team-mate Antonio was asked if he has tried to get Rice to stay at West Ham, but the Jamaican international refused to get carried away on the subject.
Speak with air sports, he said, “Dec hasn’t even done his best yet. He is incredible. What I see every day in training, he has so much more to do, so much more to learn.
“But what he’s doing now, he’s already one of the best in the Premier League.
“Whatever Dec wants to do, I’ll be happy for him. I love him as a player. I love him as a person. So his decision is ultimately his.’
Since his breakthrough into West Ham’s first team, Rice has been instrumental in the East London club’s rise, which culminated in a Europa League semi-final this season.
As a result, interest in the midfielder has grown, but West Ham have managed to keep their star player until now.
However, the failure of their attempts to renew his contract will affect the Hammers, who are reluctant to let Rice go to the final year of his contract, as it will diminish his value.
A £100 million price tag has reportedly been put on Rice, but earlier this season West Ham manager David Moyes suggested he could be worth as much as £150 million.
It is believed that Rice wants to play Champions League football and will find it difficult to refuse a move to a side that will help him achieve that ambition.
MORE : West Ham offer Declan Rice huge eight-year contract but Man Utd and Chelsea unlikely to sign new deal
MORE : Danny Mills tips Declan Rice to turn down Manchester United if West Ham qualifies for Champions League
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