David was at his solicitors to sign the missives on the house when he spotted an opportunity. He had lined up a British Cruiserweight title fight 10 days after he left.
On Sunday, the boxer from East Kilbride will face the man from London. Lawal was due to face Deion Jumah, but the latter has retired from the sport due to a training injury.
His big chance has been taken by Jamieson.
"Maybe the only opportunity I'll have to fight for a Lonsdale belt is to take a bout off the cuff with 10 days' notice against a superstar," he said.
It has been a quick few days. After talking about what crockery and utensils will be moving to the new house, he went on to discuss the details of a vacant title.
It all feels very similar. He lost to Lawal in the Ultimate Boxxer tournament three years ago. There was a 10 day notice period for that contest.
The irony is that. It's a completely different kettle of fish with 12 rounds this time.
The chance to win the coveted Lonsdale belt was an opportunity that was too good to pass up. When he saw on Lawal's social media that Jumah had left, he took matters into his own hands.
He spied it when he went into the solicitors to sign the missives. I got in touch with my manager, Sam Kynoch, right away, and said, 'look into this, we're ready to go'.
"I went into the solicitors, 40 minutes later came out, and basically he said, "Sky Sports loved it, there's a bit of back story and they are putting it to the British Boxing Board of Control for approval". It was pretty much the same as that.
We were going to fight for the British title before you knew it.
Even though he wasn't as prepared as he might have been for the last-minute call-up to face Lawal, he still stays ready.
He believes he is in good shape to take on the challenge and has kept within his weight.
My heart is on my shirt. I come from East Kilbride, Scotland, and I leave everything in the ring. I train in Blantyre and I have the weight of a fighting town on my back, so I'm going to show these boys what it's all about.
We are not here to add up the numbers. It's not about "we'll bring the boy down from Scotland and he'll put on a good show" We're going to take the British title here.
It would be nice to have something to put on the mantlepiece.