"It's been a good four months, hasn't it? It feels like it's been an election in its own way. I prepared well, everyone understands what I've done with my record…I had a great two and a half hours in front of the board and it went another way.
"I flicked a text (to Foster) to say congratulations to him. It's been a big few months and obviously it's nothing personal, he's in a position like me and wants to do the best for himself and the country."
The 45-year-old Robertson has amassed an impressive record as head coach, with a winning percentage above 80 per cent during his time at the helm of Canterbury and the Crusaders. Since taking over at the Crusaders for the 2017 season, the club has won 48 times and lost just five matches.
After the announcement of Foster's appointment was made on Wednesday, many commented that Robertson would be lost to New Zealand Rugby as another national system would pounce on the opportunity to lure him away. However, with two years remaining on his contract, Robertson brushed those suggestions aside.
"I'm coaching the team I love, where I've had a lot of great moments as a player and now as a coach, I've got a lot of special bonds and a chance to do something pretty special," he said.