Following the corner kick, Sporting Lisbon failed to create a shot on goal.
Heading was not the strong suit of this team.
Deng Kai couldn't help but criticize Cristiano Ronaldo's straightforward and simple heading effort in his mind.
But it was understandable.
The essence of heading lies in positioning, but it's based on physicality.
At this stage, Ronaldo's physical condition wasn't superior to his opponents', leaving his heading without any advantage.
Moreover, he hadn't yet considered heading as a means to score goals and was still fixated on attacking with his feet.
He still needed a lot of time to develop his arsenal.
Instead, Viktoria Plzen managed to secure the first touch from the corner kick and attempted to launch an attack.
But their attack died at the first hurdle.
Deng Kai executed a beautiful tackle to disrupt the football.
At this point in the game, most of the players' stamina had fallen below the red line.
Their key movements unconsciously slowed down.