Celtic striker Scott McDonald refuses to contemplate taking a seven-point lead over Rangers with a win in Sunday's Old Firm derby at Ibrox.
The Parkhead club surrendered their Clydesdale Bank Premier League title to Rangers last season after having a similar advantage over the Ibrox men at one stage.
The Australia international, who scored the equaliser in Thursday night's 1-1 draw with Rapid Vienna - a result which kept Tony Mowbray's team bottom of Europa League Group C with one point - said: "Let's not talk about that right now, we've been there before haven't we?"
He added: "One step at a time and if we were to win it would be fantastic.
"We would be seven clear once again but as we know, that can be cut down very quickly.
"It's a massive game against Rangers and so I don't think you need to pick yourself up for that one. "I'm sure we will be ready for it as I'm sure Rangers will be after a disappointing result in Europe against Sevilla.
"It will be a big battle, so bring it on."
McDonald's 20th-minute equaliser got Celtic back on track at Parkhead after Nikica Jelavic gave the visitors the lead with his third-minute strike.
It was the third home game in succession that Celtic have had to fight back after losing an early goal and Greek striker Georgios Samaras admits it is a bad habit which has to be stopped.
He said: "They scored from the first chance and that it something that we have to improve upon in our game. "We have to be 100% focused from the first minute."
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