Carroll to undergo West Ham medical
Gold wrote on his Twitter account: "Andy Carroll is having his medical tomorrow."
There could be one significant hurdle for Carroll to overcome during the assessment.
The England international has been out of the country on holiday having missed out on the national team's end-of-season friendlies against Republic of Ireland and Brazil with a heel problem, with fears it could sideline him for up to four months.
But assuming there are no long-term fears over his fitness, he appears poised to complete a move several weeks after the clubs first agreed a Â£15million-plus deal to make his loan permanent.
Carroll scored seven goals and added four assists in 26 league appearances for the Hammers last season, having been sent out on loan with Liverpool manager Brendan Rodgers unable to accommodate the club's record signing in his system.
However, Rodgers is keen to bring in funds to help his own summer spending, with Shakhtar Donetsk's £20million-rated forward Henrikh Mkhitaryan, Sporting Lisbon defender Tiago Ilori, Sevilla midfielder Luis Alberto and Sunderland goalkeeper Simon Mignolet all on the radar, with Manchester City defender Kolo Toure and Celta Vigo forward Iago Aspas already secured.
Carroll could become West Ham's third signing of the summer following Shakhtar Donetsk defender Razvan Rat and Real Betis goalkeeper Adrian.
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