On paper this is a huge mismatch against Megrino however the Filipino, like compatriots Rey Loreto and Sonny Boy Jaro, has one of those amazingly deceiving records that doesn't paint the whole picture on their ability.
The 28 year old Megrino has been a professional since 2005 and has developed a lot from the fighter who was once 6-8-1 (5). That's shown by his current run of 6 straight wins with 5 stoppages, including notable wins over Pongsaklek Wonjongkam, in what was their 3rd meeting, a stoppage of the then touted Kenji Kubo, a decision victory over the tough Myung Ho Lee and a 3rd round KO over the then unbeaten Ernesto Saulong.
Sadly Megrino's success has lead to him becoming a less than desirable foe and he's been out of the boxing ring since his win over Saulong last May. He's not been totally inactive, having fought an MMA contest, but he's certainly not been able to build on his success at the rate he'd have been hoping to and although he is WBC world ranked he's not been able to really make the most of his ranking.
On paper Megrino is a "poor" opponent he has scored 3 very notable stoppage wins over Denver Cuello, Ratanapol Sor Vorapin and Pongsaklek Wonongkam. He has also mixed with a very high level of competition with losses coming the the likes of Pungluang Sor Singyu, Arthur Villanueva, Nawaphon Por Chokchai, Sonny Boy Jaro, Tepparith Kokietgym, Paipharob Kokietgym, Pongsaklek Wonjongkam and Denkaosan Kaovichit and although he has lost against those men he has often been competitive.
As for Yafai, the touted Englishman was a stand out amateur who has been earmarked for success since his debut. This however is a big step up with his best win to date being a 12 round decision against Everth Briceno.
Aged 25 Yafai has had a frustrating career since his debut in July 2012. He has been groomed as a star but like many Brits in the lower weights he has been matched relatively easily. Sadly the lower weights in Europe are renowned for being weak and fighters tend to be rushed through the lower tiers before coming up against stiff competition from Asia or Latin America. That could well be the case here, though many who have merely seen Megrino's record may not appreciate his toughness nor his power.