Middlesbrough manager Garry Monk is adamant that Ben Gibson is not for sale.
The highly-rated defender, who was called into the England squad last season, has been strongly linked with Southampton and West Brom.
Boro have reportedly rebuffed offers worth around £20million following their relegation from the Premier League, and Monk insists the club are determined to hold on to the 24-year-old centre-back.
'You want to keep your most important players and the chairman (Steve Gibson) is very strong on that,' Monk said.