Wallin tries to counter with a left from another Joshua attack and it hits the top of the 34-year-old’s chest, but it doesn’t cause Joshua any noticeable problems.
Joshua then sends a lovely shot to the Wallin body. A jab, right around the defence and again Wallin has to take a step back as it lands nicely on his jaw sending him rocking.
Wallin is struggling to cope with the power of Joshua. Four rounds gone and Joshua has won them all.