The Saints have remained adamant throughout the regular rounds of rumours that they have no intention of parting with more prized assets, having seen a steady stream of talent leave the club in recent years.
That has, however, done little to curb the speculation, with Netherlands international Van Dijk reported to be drawing admiring glances from Premier League heavyweights Liverpool, Arsenal and Manchester City.
Southampton, though, are remaining defiant and have put the pair front and centre in the promotional imagery pushed out alongside their kit for 2017-18.
Van Dijk has caught the eye during his two seasons in England, with Southampton having snapped him up from Celtic in 2015.
He saw his 2016-17 campaign cut short by injury, but not before enhancing his reputation.
Bertrand, meanwhile, has shown himself to be a top level performer after finally giving up on Chelsea in 2014 and completing a permanent switch to St Mary’s.