An epidural is a procedure whereby drugs are injected through a catheter which is inserted into the epidural space. The epidural space is the space between the bony spinal canal and the dura (which surrounds the spinal cord and spinal fluid).
1 All drafted players must be at least 19 years old during the calendar year of the draft. 2  To determine whether a player is eligible for a given year's draft, subtract 19 from the year of the draft. 3  If the player was born during or before that year, he is eligible.
The basic categories of players eligible to be drafted are: 1  High school players, if they have graduated from high school and have not yet attended college or junior college; 2  College players, from four-year colleges who have either completed their junior or senior years or are at least 21 years old; and.