Identify this 1990's Mark Texeira layout page 0

[MIL0S]

I purchased a vintage Mark Texeira convention sketch recently and was pleasantly surprised to find a loose penciled page layout on the backside.  The sketch was dated 3/20/99.  does anyone have any idea what title/issue/page this is?

[Unstoppablejayd]

That third panel, is very familiar... it may be mystique and I think it is from the sabertooth limited series.