Please read the following table in Markdown format and then answer the question according to the table. Table cells in one row are seperated by '|', and different rows are seperated by '
'.

Table:
| Round | Pick # | Overall | Name | Position | College |
| --- | --- | --- | --- | --- | --- |
| 1.0 | 22.0 | 22.0 | Anthony Castonzo | Offensive Tackle | Boston College |
| 2.0 | 17.0 | 49.0 | Benjamin Ijalana | Offensive Tackle | Villanova |
| 3.0 | 23.0 | 87.0 | Drake Nevis | Defensive Tackle | Louisiana State |
| 4.0 | 22.0 | 119.0 | Delone Carter | Running Back | Syracuse |
| 6.0 | 23.0 | 188.0 | Chris Rucker | Cornerback | Michigan State |
Question:
What's the highest round for a defensive tackle position?
Answer:
3.0