With 23 cups in 11 years, former Scotland international McGregor knows one or two things that only does. He is the winner of the series.
The level of congratulations with the Lisbon Lions Billy Mannell captain, only Bobby Lenux and his current team-mate James Forrest are ahead of him in the role of honor.
If Celtic wins the Premier League title – you can do it against Dundi United on Saturday – Forrest will move forward alone, as the most decorated Celt.
Instead of focusing on his player in the game, the captain wanted to praise his friend who had long devoted his life to the club.
McGregor, 31, is at that stage and wins.
Celtic captain is now preparing for the 15th local Cup final. He has never lost any of his previous 14, a feeling of winning.
“If you ask any football player, success is addictive,” he said. “That will be a habit. You will just continue your will, and that’s what we’re trying to plant in the team.
“When we reach these moments, they become normal. You have to win, you have to play well.
“So, as much as we can normalize that and continue to be successful, we hope it will keep the group in a good place.