SWISS defender Kevin Mbabu has left Newcastle United on a permanent basis after joining Young Boys for an undisclosed fee.

The 22-year-old enjoyed a successful loan spell at the Stade de Suisse last season, helping Adi Hütter's side to finish second in the Super League.

Mbabu moved to Newcastle from Servette in January 2013 and he looked a decent prospect when Steve McClaren handed him a surprise debut in a Capital One Cup defeat to Sheffield Wednesday in September 2015.

He was then pitched in for a Premier League bow against Chelsea three days later but injuries halted his progress.

Mbabu had a loan spell with Rangers and made a total of five appearances for the Magpies in all competitions.