INFINITE member Hoya's ankle injury suffered last month was diagnosed to be more serious than expected.

Hoya, who twisted his ankle during a filming of KBS "Yoo Hee Yeol's Sketchbook" on July 29, was diagnosed with a pulled ligament and cartilage infection.

According to sources, Hoya will have to walk with a cast on his ankle and maintain rest for a month or two.

This brings on problems, as INFINITE's summer concert "In The Summer 2" will begin on August 7 at Seoul's Samsung Card Hall.

Agency has recommended that Hoya restrict his movements and change up the choreography, but Hoya is insistent on giving his full performance on pain control medication. Staff stated: "The agency and other members have been trying to change things around, but Hoya is quite stubborn."

The concert will be held on August 7-10, 14-16. All tickets have been sold out.