As one of Cardiff City's key signings during the summer transfer window, much was expected of Robert Glatzel by those who follow the south Wales club. 

The German striker arrived at the Cardiff City Stadium from 2. Bundesliga side FC Heidenheim for a substantial fee after scoring 13 goals and laying on four assists for his teammates in 26 outings for the second division side.

However the tall front man has so far flattered to deceive if truth be told, with his record of just two goals in 11 Championship outings surely casting doubt over the long-term future of the forward.

QUIZ: Can you name Cardiff City’s last 15 permanent managers? See if you can get full marks down below!

Newly installed Bluebirds boss Neil Harris has yet to have seen much of his striker since arriving at the club as Neil Warnock's replacement, with the German currently still sidelined through injury.

The 25-year-old striker will be keen to make an impression on his manager when he makes a return to full fitness, if he is to avoid an early exit from the Championship club.

Here, we sum up Robert Glatzel's spell at Cardiff City so far in THREE words....

Underwhelming

The striker has put in some largely underwhelming showings for the Bluebirds this term, with many fans criticizing his lack of physical presence up top despite his substantial height.

Glatzel needs to significantly improve the amount of aerial duels he wins per game, with an average of 4.7 unlikely to convince Harris of his ability, particularly as the former Millwall boss favours a direct style of play.

Whilst the striker must also improve his passing output, with a poor average of 15.9 passes per game making for grim reading.

Wasteful

The striker has also been largely wasteful in front of goal during the first half of the campaign, with the striker averaging 2.5 shots per game, his total return of just two goals is a disappointing record that he will surely be looking to improve upon.

His finishing touch has been found to be lacking on far to many occasions this season and Neil Harris will surely have that in the back of his mind when assessing his striking options over the coming months before making any changes in January.

Unconfident 

The striker's overall game seems to have taken a real dip and this could be put down to a high loss of confidence from Glatzel's point of view, adapting to a new, more physically demanding league is not an easy task for any foreign player.

It is clear that he is not getting in the right areas to score goals, with his statistics of just 0.4 shots in the six yard box indicating that he needs to be gambling more when balls get played into the box.

Luckily for Glatzel, his manager used to do just that for a living during his playing days, and some simple coaching from Harris could well get the best out of the German.