Temporarily blinded, Captain America lost sight of Calvin Zabo for few seconds. The mad scientist took this opportunity to escape. But the Avenger's abilities were not restricted to its sole sight. He had been trained to use his five senses at full capacity.
Listening Zabo's run , the veteran of World War II sent his shield without looking his target. It hit the back of Zabo's head, who lost consciousness.Cap regained his sight to catch his shield ust in time.
Approaching Zabo, Captain America activated his CommuniCard and called the Avengers headquarters for immediate backup.
"I must see a doctor", he thought with difficulty. "I drank a few drops of this cursed serum. I can fear for the consequences."
And when validating the alert signal ...