Calvo made his Kickers debut in a 2-0 win over South Georgia Tormenta FC on May 8, 2021. Starting with the match against Tormenta, Calvo anchored the right side of the Kickers’ defense for nine of the team’s 10 clean sheets in 2021. The Costa Rican defender went on to start all 24 matches he appeared in while amassing 2,028 minutes played – ranking seventh-most among Kickers’ outfield players.
He thrived when challenging opposing forwards one-on-one and led all Kickers defenders with 25 tackles won at a 66 percent success rate. Calvo would also finish in the top 3 amongst Kickers defenders in interceptions (35) and duels won (105).
“Individually, I want to do everything I can to help the team in any way. Last year I hit a tough spot in the middle of the season where I didn’t feel 100 percent. I want to make sure this year that doesn’t happen. I am working harder on my form and doing everything I can to limit my mistakes.”
“Playing at City Stadium is always great,” Calvo said. “The field is great and so is the Red Army. Our fans are incredible and they always support us regardless of the situation. Teams fear us at home and it should be that way; they have to know it’s our home and they have to respect it. We always do our best to protect our house.”