With the NFL combine underway, let's take a look at some memorable combine performances by some San Francisco 49ers via ESPN Stats & Information:In 2006, tight end Vernon Davis put together one of the best shows in recent memory when he ran a 4.38 40-yard dash and had a 42-inch vertical jump. The 49ers took him with the No. 6 overall pick.Last year, safety Eric Reid had a broad jump of 11 feet 2 inches and it was one of the best performances of the past decade.