Adam Armstrong is currently on loan at Coventry from Newcastle.
Mowbray said: “What I found is that the first day he came onto our training pitch you could see the power, the fluency, the touch, it was just a bit beyond a lot of the rest the group. When you put it into context, he's an 18-year-old boy, we thought: 'Wow, we've got one here.’”
Armstrong linked up with Coventry in the summer transfer window, and his current deal runs until January 2016.
The 18-year-old striker has been in prolific form this season, scoring 13 goals for Coventry to help the club rise to second place in the division.
Although he is playing in a lower league than Newcastle, Armstrong has managed one fewer goal by himself than the Magpies have managed in the entire Premier League as a team; he has 13, whilst Newcastle have scored just 14 in 14 games.
The England Under-19 captain is considered one of the brightest talents in the Newcastle ranks, and this loan spell is perfect for him to get a chance of playing consistent competitive football.
He was thrown in at the deep end last season in the Magpies senior team, and has played 19 times without scoring a goal yet, and this loan allows Armstrong to get experience at a level suited to his abilities.
Mowbray has certainly been impressed with him, and Armstrong’s goalscoring form should not be overlooked, and Newcastle fans have called for Steve McClaren to recall him in January rather than extend his loan until the end of the season.
There is a belief that the local lad could have a better impact in McClaren’s team than the senior players such as Papiss Cisse and Aleksandar Mitrovic, with Newcastle really needing to score goals if they are to stay in the Premier League this season.
Whilst the calls make sense, given Armstrong’s form in League One, it is hard to suggest that being thrown into a relegation battle is the best thing for his development as a player, and McClaren should allow the youngster to remain with Coventry for the entire campaign.