By:  Alex Myers   Scott Brown entered Sunday’s final round at the Farmers Insurance Open with a share of the 54-hole lead. But by the end of play on Monday, the only question was whether he would break 90.  Brown wound up shooting an 87, dropping him from T-1 all the way down to T-49. Brandt Snedeker, who posted his 69 — the only sub-par round of the final round — on Sunday evening, wound up winning. Take a look at Brown’s brutal back nine: Weather conditions made scoring at Torrey Pines