Is Sachin an all-time great?

Questions about Tendulkar's place in the Indian team have been making the rounds in recent times. Though his ODI form has been awesome, he has been making insignificant contributions in Tests since his 35th Test century. The debate about his place in the team finally came to a crescendo when he was boo-ed by this home crowd at his home ground. The immediate reaction to this incident all-round has been that Sachin is an all-time great batsman and what the crowd did at Wankhede was disrespectful, not recognizing Sachin's yeoman service to the nation over the years, ignorant of his place in history, etc. etc. ...

In light of this, an interesting discussion cropped up today on one of Cricinfo's blogs whether there is any Test match that Sachin can claim to have owned. The author of the post, Gaurav Sabnis, cites 3 examples of other Indian batsmen owning a Test - Laxman at Kolkata, Dravid at Adelaide, and Sehwag at Multan. But, as one of the commenters points out, in these 3 instances, Dravid, Laxman and Sachin played stellar supporting roles.

So, are there any instances at all when a batsman has single-handedly taken his team across the victory line in a non-trivial fourth innings chase or a third innings comeback? If not, maybe we are expecting too much from Sachin?