Walker regained his place on the World Snooker Tour thanks to his performances in the European Tour events in 2015/16.
The Welshman made it to the last 32 of three European Tour events throughout the season.
He also went on a run to the last 32 of the 2016 China Open, knocking out Ding Junhui along the way, causing the Chinese superstar to need to qualify for the World Championship.
He earned a place on the main tour for the first time in six years by coming through Q School in 2014, after beating Joe O’Connor in the final round of event two.
Walker was a regular face on the pro circuit between 1994 and 2008 and climbed to 42nd in the world.
He is also an official WPBSA World Snooker coach and makes regular trips to Sweden to train young players.