jordan spieth will continue his quest for masters glory when he tees off his third round at augusta at 2:55 pm local time -lrb- 7:55 pm bst -rrb- on saturday .
the 21-year-old american holds a five-shot lead at the half-way stage after a record 14 under par opening two rounds , and he will be joined in saturday 's final pairing by charley hoffman , who is on nine under par that