Barker is getting thrown in at the deep end. He has looked good in his past fights but has never been in with anyone close to Martinez's level. Barker does have the natural size advantage but thats probably about it. Think it will go longer that 4 but I think Sergio will stop him around 8. Martinez is a special fighter and could well put another show against Barker, but hopefully Barker can make it interesting and cause Sergio a few problems.
Barker boxed a great fight, did not look out of place at that level. He was a couple down on my card going into the 10th. He had to open up, he did and got taken out. No shame. He had a go and went out on his shield. He caused a lot of problems for Martinez early on. I had him ahead early on. I don't think the judges did though.