Times have changed over the last few years, as Rangers look to recover from being banished to the fourth tier, and Celtic have had an easy run at the domestic league in their absence.
Last season Celtic striker Moussa Dembele announced his arrival with a hat-trick in a 5-1 win at Parkhead, the game which proved to be Joey Barton's last in Scotland.
McGregor also revealed that, as a ballboy at Celtic Park, he raced the lengthy of the pitch to celebrate Thomas Gravesen's opening goal in a 2-0 success for Gordon Strachan's side in the fixture back in September, 2006.
If we go and take the three points it will be another step towards us improving and where we want to be.
Sunderland must be anxious about losing players in the summer window with a drop down to League One looking more likely than not right now. We are not under pressure, Celtic are under pressure.
Ahead of an encounter that could enable Rangers to close the gap on their greatest rivals to three points, the Celtic manager addressed what were termed "confident noises" supposedly emanating from the other side of the city.
The men from the Stadium of Light have been suffering for some time with a lack of confidence and barring a late turn around, they could soon be into the third tier of the Football League system in this country.
Rangers need to win the game and that's different.
The Old Firm game is available in most countries through the rights holders' online platform, if they have one.
Bates said: "After the game, we were buzzing having got to a semi-final and any team we'd have got in the draw we'd have cheered".
"But the first part of that journey is overcoming Celtic and that's why Sunday's game is such a big game for them".