Jan Siewert was left frustrated by his side's defending of the set piece which led to Brighton's opening goal and condemned Huddersfield to a 21st Premier League defeat on Saturday afternoon.
The German manager was angry at one moment of poor defending which allowed Anthony Knockaert to send in a cross which substitute Florin Andone headed in. After showing fight and resistance in the first half of the match, Huddersfield were left without any points as Brighton went on to win 1-0.
"We lost the game because of a free-kick, I'm angry about it because in the Premier League you cannot allow situations like this.