He actually doesn't train full time at the NTC. He trains mainly in his hometown of Vaughan (north of Toronto) where his mother is a private tennis coach for hire. She was a tour player and was runner up in the USSR national championships according to her bio.
He was in the same position as Brayden Schnur, he was a top player, but the NTC recruited Ben, Jack, Josh, Victor and Alexis over him due to disagreements with his playing/coaching schedule and due to some behavioural issues he had when he was younger.
His fulltime coach is actually Adriano Fuoriva who used to play low level pro tennis, his mother is more of a consultant now.