Rangers: How Derek McInnes tactically outwitted Martin O'Neill to potential retirement

Derek McInnes may have effectively pushed Martin O'Neill towards retirement after Rangers' win over Celtic on Sunday.

The Bears picked up their second Old Firm win after beating the Hoops 1-0 at Celtic Park, despite none of their own fans being allowed in the ground.

It follows the 3-0 battering in the Premier Sports Cup the weekend prior, which already caused Martin's mask to start slipping.

McInnes has now become the second manager in Rangers' history to win his first two games in charge against Celtic after Graeme Souness in 1986.

O'Neill hinted that the Bears were going to struggle at Celtic Park as his side did at Ibrox due to the lack of fans, but that silly theory was put to bed by big Ryan Naderi.

Now, the Celtic boss is considering his own future after Rangers' two big wins, and it's all thanks to McInnes' tactics.

How Derek McInnes' tactics have left Martin O'Neill starting at retirement

O'Neill stated that he will consider his future over the international break, and whether he is the right man to continue helping Celtic improve.

The 74-year-old said, as quoted by The Express: "It's not the first time I've been questioned about my managerial time. So, I'll have a look at it. I will reflect and see.

"Asking what I, myself, [can do] is the main thing. Asking what I can do to help the team. That would be the most important thing for me to see. I genuinely will reflect and see."

O'Neill mentioned his age and that it may be time to "wrap it up" soon, and this has all come as a result of McInnes' excellence.

Rangers only had 45 per cent of possession, but still managed to conjure up 1.23 in xG compared to the hosts' 0.71.

The Light Blues had eight shots on target in each of their wins over Celtic, while the latter could only manage one in both of their defeats.

Interestingly, according to data provided by FotM, b Rangers used 40 per cent of their attacks down the left-hand side, with Djeidi Gassama and James Penrice seeing a lot of the ball.

They also had 34 per cent of their attacks on the opposite flank, despite their opposition setting up with just two men in the middle and a five-at-the-back when out of possession.

Penrice often drifted into inverted positions on the left to open up runs for others in pockets of space, helping keep the pressure on the Hoops throughout.

The Gers defended well when they needed to, but their attacking pressure was their best form of defence for the majority of the contest.

Where Rangers physically won the battle against Celtic

We are now starting to see where Hearts had so much success defensively under McInnes.

Rangers have now kept four consecutive clean sheets in all competitions, as credit is due to the defence.

The Bears won the majority of the physical battle in the air, winning 54 per cent of aerial duels thanks to Olwethu Makhanya and Emmanuel Fernandez.

Celtic looked lost, and Martin now appears to be staring down the prospect of walking away at the first sign of collapse at Celtic Park.

McInnes' genius is to thank for Rangers' big results over Celtic.