The 26-year-old has been working hard over the past few weeks in order to regain his full fitness for the 2015-16 campaign.
Carroll has been sidelined since February due to a serous knee injury, and he has been spending time in the gym and on the training pitch since the end of the 2014-15 season.
Jack Sullivan, who is David Sullivan’s youngest son, is impressed with the dedication and commitment of the England international.
“The players will be back for the start of pre-season training and it is great to see Andy Carroll back on the training pitch,” he wrote on West Ham’s official website.
“He has not gone on holiday through the summer and has shown a real commitment to the cause by working hard on getting back to his full fitness.”
Carroll has suffered with injuries since his permanent move to West Ham from Premier League rivals Liverpool in the summer of 2013.
It seems that the former Newcastle United star is determined to keep his fitness issues behind and get his career back on track.
Interestingly, Carroll has been linked with a move back to his former club Newcastle in the summer transfer window.
According to a report in The Chronicle earlier this month, the Magpies are interested in signing the 26-year-old from West Ham.
It was reported by the British newspaper that Newcastle are willing to recruit back the striker they sold to Liverpool in January 2011 but only “for a knockdown price”.
Carroll could make only 14 appearances in the Premier League in the recently concluded 2014-15 season, scoring five goals and creating 11 chances in the process.
In the 2013-14 campaign, Carroll scored two goals and created 15 chances in 15 Premier League matches.