Formerly

O monarch, formerly Krishna did not respect

1. king Yudhishthira, the son of Pandu, or 
2. Drona, so much as he used to respect thee. 

When, however, he came to know thee as one fallen off from the duties of a king, since then Krishna hath ceased to regard thee with respect.

http://www.sacred-texts.com/hin/m07/m07083.htm