The US Open account on Instagram switched his racquet for Thor's hammer using software editing tools, which created a new nickname for the Argentine: Juan Martin "del Thortro", by fellow tennis player Roger Federer, adding to a collection of nicknames such as "Delpo", "Tower of Tandil", "Palito" (stick) and "Enano" (midget). This led to a joke in social media with Chris Hemsworth, who plays Thor, and in this joke he demands his hammer back because he claimed to need it for his quests.