Yuvraj, a One-day specialist drafted into the side due to the injury-induced absence of Ganguly, said he concentrates on just playing the game.
"I am not worried about these things. Whatever cricket I get to play, I will try to score the runs. So these things don't trouble me," said Yuvraj, who hit a brilliant 129-ball 112 in India's first innings score of 287 on a lively track at the Gaddafi Stadium.
The stylish left hander from Punjab has cemented his place in the one-day team with match winning knocks but has struggled to break into the Test team which is crowded with talented batsmen.
And it is only a stroke of luck which has helped him gain a middle order slot in the first and second Tests.
Nevertheless, Yuvraj was excited to have scored his first Test hundred. "This century means a lot to me. It is a proud feeling to achieve this milestone," he said.
Dedicating the hundred to his parents, he said, "this knock will give me a lot of confidence whenever I get to play Test cricket." He said it did not take a lot to adjust his batting to Test cricket from One-dayers. "It doesn't need a lot of adjustments but we get time to settle down in Tests," Yuvraj said. "Today I tried to hang around as long as possible. The idea was to get India to a decent total." Yuvraj shared a 117-run stand with Irfan Pathan for the eighth wicket which boosted India's total, which was 147 for 7 at one stage.
"I just thought of staying till the end. Obviously there was pressure but Pathan batted very well and gave me good company," he said in praise of his partner.
"I told him to play straight, look at the ball and play. He did a good job." He said it was a combination of pitch conditions and poor batting that led to India's low score. "There was a bit on the wicket but we also did not bat as well as we could have.
"It (the total) is not big. We have to bowl really well, there is lot of cricket left in this game. It remains to be seen how we play in the remaining four days," he said.
Yuvraj also held Umar Gul out as good prospect for Pakistan. Gul captured a career best 5 for 31 to rip through the Indian top order.
"He capitalised on the conditions and is a good prospect for Pakistan," he summed up.