In 2018-19, Salisu began training on a regular basis with Sergio’s seniors during the week, while he mixed playing league games for the B side along with Copa del Rey appearances for the first team. The 2019/20 opening day brought a full La Liga Santander debut, when he played a key part as Valladolid got their season off to a flyer with a 2-1 win at Real Betis.

The following weekend’s 1-1 draw at Real Madrid’s Santiago Bernabeu showed Salisu and his teammates were a match for anyone in La Liga Santander.

Over the following weeks and months, Salisu slotted into the middle of Valladolid’s back four alongside the highly experienced Kiko Olivas, with the pairing’s strength and dependability key to a run of six clean sheets in 10 La Liga games. The 33 goals conceded in their first 27 LaLiga outings is actually the fewest of any side in the bottom half of the table.

Individual numbers back up the impression made by Salisu, whose 6’3” and 82-kilogram frame is fast across the ground and comfortable with the ball at his feet. He has an 81 percent pass success rate, and few young or old defenders have the discipline to pick up just two yellow cards all season. Most outstandingly, no player anywhere in La Liga has made more than his 136 clearances so far.

A first La Liga goal during October’s 2-0 victory at home to Eibar may have been from only two yards out, but it clinched a vital three points. In early January, he drove forward to provide the cross converted by centre-forward Enes Unal for a crucial late equaliser for 2-2 at home to Leganes.

The competitive character also surely enjoyed facing fellow Ghanaian Thomas Partey in October’s 0-0 against Atletico Madrid. And the 1-0 win at RCD Mallorca in February, when future Black Stars international colleagues Lumor Agbenyenu and Iddrisu Baba were on the opposition side.

Such performances have drawn plenty of attention from other clubs in La Liga and further afield, along with speculation that Salisu could attract a big-money bid next summer.

For the moment, though, the naturally relaxed character looks perfectly comfortable at Valladolid, where he has come such a long way in just under three years. One to watch, for sure.