Tom Simpkin Biography

St Kilda delist half-forward Arryn Siposs, defender Tom Simpkin and midfielder Daniel Markworth.

The seasons of St Kilda's Arryn Siposs, Rhys Stanley and Tom Simpkin are over with all three booked in for surgery this week.

Siposs will have an operation on his shoulder, while Simpkin has already gone under the knife to relieve pressure in a compartment of his lower leg.

Stanley will have surgery to repair his fractured collarbone.

Off-season surgery to his shins has led to Tom Simpkin becoming a key plank in St Kilda's defence.

"It was crazy. There were days where I couldn't get out of bed in the morning," Simpkin said.

"The docs said there was surgery that could be done so I wanted to get right into it straight away."

Simpkin said the departure of Ross Lyon and Zac Dawson opened the door for more opportunities at the club as a defender.

"Once Zac left I knew there was an opportunity there. Obviously it wasn't going to be handed to me just because we were short on key backs," he said.

"On day one of pre-season I knew I had to work hard."

Tom Simpkin makes his AFL debut for St Kilda at the MCG with 9 disposals (2 kicks and 7 handballs), 3 marks and 4 tackles in a 57-point loss to Collingwood.