Carroll spent the majority of last season on loan at Upton Park after falling out of favour with Liverpool manager Brendan Rodgers, scoring seven goals in 24 appearances for the London club. 

Liverpool smashed their transfer record to sign the England international from Newcastle in January 2011 on the same day that Fernando Torres left Anfield for Chelsea. 
The 35 million-pound move did not work out, but Carroll did impress for West Ham in 2012-13, with Sam Allardyce making no secret of his desire to keep hold of the 24-year-old. 

Discussions between the two clubs now appear to be progressing after Gold hinted that there had been movement towards a deal.
  
During a question and answer session with followers on Twitter, he wrote that "the chances of AC (Carroll) joining West Ham has risen from 50/50 to 75/25 in the last few hours".