[3] In Round 21 of the 2006 season, and whilst still in high school, Lawrence made his debut for the Wests Tigers against the Brisbane Broncos at Suncorp Stadium.
At season's end, he was selected to tour Papua New Guinea as a member of the Prime Minister's XIII.
[7] 2008 was the first year Lawrence cemented a position in the Wests Tigers side, starting every game in the centres.
[11] In 2009 Lawrence was then named in the 40-man New South Wales preliminary squad for State of Origin, but was not selected for any games.
New coach Jason Taylor moved him to the second row with Lawrence breaking his try-scoring drought with two tries against the Gold Coast Titans in round 13.
"[21] Lawrence continued in the second row in 2016, but moved to five-eighth for one game in round 9 when Mitchell Moses was a late withdrawal after injuring himself in the warm-up.
He said, "Representing Australia was a career highlight but being told this is recognition of my leadership qualities on and off the field is special in a different way.
[24] With the departure of Aaron Woods, Lawrence was named as one of five co-captains at Wests Tigers, alongside Benji Marshall, Elijah Taylor, Russell Packer and Josh Reynolds.
In round 5 against the Melbourne Storm, Lawrence broke the record for most tries by a Wests Tigers player with his 77th, having previously been tied with Benji Marshall.
[27] Lawrence missed the start of the 2019 season after a head-clash with teammate Ben Matulino in the pre-season, which required plates to be inserted in his face.
A couple of surgeons that I saw really hadn’t seen anything like it in rugby league, and that put the recovery in a bit of limbo because I didn't really know how long until I was going to be back.
"[28] In Round 20, Lawrence scored his first try of the season as Wests defeated North Queensland 28–4 at Leichhardt Oval.
For the first time in his career, he failed to score a try in the season, but retired with the club record of 84 tries shared with Benji Marshall, and the highest total by a Wests Tigers centre with 54.
[33] It was said after his last game, "any player who has ever lined up alongside Lawrence will say he's the hardest worker and the ultimate loyal clubman.