Today it was revealed that both of those men will return to the ring on March 27th to take part in their retirement ceremony's.
Uchiyama last fought at the end of 2016, when he suffered his second loss to Jezreel Corrales, who had stopped Uchiyama in April that year to end Uchiyama's long reign as the WBA champion. He delayedannouncing his retirement until part way into last year, but didn't take part in any ceremony which is why he's returning later this month for a one off event.
As for Amagasa he last fought back in September 2017, when he lost to the criminally under-rated Richard Pumicpic in a bout for the WBO Asia Pacific title. He is best known for his gutsy effort against Guillermo Rigondeaux but never looked the same fighter after that bout, going 5-2 including the loss to Pumicpic.
Whilst the retirement ceremony isn't anything massive it's still nice to see the two fighters get their moment in front of fans before walking away from being fighters, and it also gives both a chance to talk about their futures.
(Image courtesy of boxmob.jp)