Rubin Colwill is a player of huge talent and even greater potential, much talked about since making his Cardiff debut as an 18-year-old in 2021 and being included in Wales’ Euro 2020 squad later that year.
He is an attacking midfielder who can dribble, play a killer pass and score with stunning long-range strikes – but his progress has stalled in recent years.
Colwill, now 23, has been in and out of Cardiff teams and Wales squads, and he finds himself at something of a crossroads in his young career.
Barry-Murphy has made him vice-captain for this season and he wore the armband against Peterborough as Calum Chambers was suspended.
Colwill, with his younger brother Joel making his first league start for Cardiff, responded to that added responsibility with an excellent performance, full of attacking invention in possession and defensive effort off the ball.
His goal was a beauty, a powerful free-kick struck in the manner of Cristiano Ronaldo or Didier Drogba, giving Posh goalkeeper Nicholas Bilokapic no chance.
Kpakio also deserves a mention for his display from right-back. The 18-year-old is rated extremely highly by Wales head coach Craig Bellamy, who has included him in senior squads.
Kpakio raided forward to good effect and got his reward with a brilliantly taken goal.