Violence broke out inside and outside the stadium before the derby between Olimpia and Motagua in Tegucigalpa.
Izaguirre, 33, was one of three players injured when stones were thrown at the Motagua team bus outside the stadium.
He later shared an image of himself sporting a dressing and said glass had damaged his eye.
In a post on Instagram, Izaguirre said it is “painful” to think of those who died in the clashes.
He played down his own injuries, saying some glass went into his eye but added it is “nothing serious” and “the danger is over”.
The fixture was postponed as a result of violence, which saw police used tear gas to tackle rioters.
“Three people died and seven were shot and stabbed. One of them is a boy. Three of the injured adults are in critical condition,” local hospital spokeswoman Laura Schoenherr told Reuters new agency.
Motagua blamed members of the Ultra-Faithful Olimpia fan club, saying: “This has to be severely sanctioned by the authorities.”
Izaguirre started his career with Motagua in 2003 before joining Celtic in 2010. He spent seven years with the Glasgow club before moving to Al-Fayha in SAudi Arabia, only to return to Celtic in 2018 for a further season.