Castro has struggled for consistency this season and, prior to his goal and assist against Highlands Park over the weekend, had managed just one goal in seven matches in 2019.
He was also omitted from the squad against Polokwane City 10 days ago, after suffering a knock which Middendorp recently described as a lack of mental strength being the reason therefor.
However, the German has since highlighted what is expected of a player of Castro’s calibre at a club like Chiefs and believes he can still deliver in the remaining games this season.
“Of course, if a brand or club is going to bring in high-profile players, then you’ll always have expectation, but that is very often something that you have to be very clear and do your homework on,” said Middendorp.
“Bringing players into Kaizer Chiefs or Orlando Pirates, or any team with a high profile or expectations, you must know that in every test, PSL and cup game you have to win. And, if you do a certain [thing] incorrectly then you have to be strong to continue doing and showing your best.
“Of course, it was a bit of a surprise to see that there was a bit of a knock, which was disappointing from his perspective, but I believe he needs support and I believe he is still able to give us a good run during the rest of the season.”