Today's Savannah Guthrie will guest host Jeopardy ... "I think it's such big shoes to fill!" she says. "Alex was not only legendary in how he did it, he was legendary in how he conducted himself ...

Savannah Guthrie sustained the injury during an "unfortunate little accident” on Wednesday night according to her Today cohost Hoda Kotb Stephanie Wenger is a TV Writer/Reporter at PEOPLE.

Craig Melvin and Savannah Guthrie may be the new dream team on Today ... He's aware he has some big shoes to fill and ahead of his January 13 start date, he wrote a heartfelt post on Instagram.