Round 1 leader Jimmy Walker isn't backing down during Round 2 of the PGA Championship. Will he be sitting atop the field after Friday? We're tracking all the action.
- PGA issues apology for wrong pin placement
- Johnson tied for 143rd at PGA after opening 77
- Walker atop PGA after 65; Stenson 2 shots back
- Jaeger shoots 58, first in PGA-sanctioned event