Chess Opening Theory/1. d4/1...Nf6/2. Nf3/2...d5/3. Bg5/3...c5

=Torre Attack= c5 is rarely played so early, though it does ask questions of white, and in master play black has a far superior record after this move.

Theory table
.

'''1. d4 Nf6 2. Nf3 d5 3. Bg5 c5'''