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:
| Res. | Record | Opponent | Method | Event | Round | Time | Location |
| --- | --- | --- | --- | --- | --- | --- | --- |
| Loss | 4-3 | Wesley Correira | TKO (knees and punches) | UFC 42 | 2.0 | 1:46 | Florida , United States |
| Win | 4-2 | Mike Radnov | Submission (rear naked choke) | UCC 10 - Battle for the Belts 2002 | 2.0 | 2:02 | Quebec , Canada |
| Loss | 3-2 | Eric Pele | KO | KOTC 9 - Showtime | 3.0 | 0:27 | California , United States |
| Win | 3-1 | Wataru Sakata | Decision | Rings: Final Capture | 3.0 | 5:00 | Japan |
| Win | 2-1 | Willie Peeters | N/A | Rings - Mega Battle Tournament 1997 Semifinal | 1.0 | 9:40 | Japan |
| Loss | 1-1 | Oleg Taktarov | KO (punches) | Pentagon Combat - Pentagon Combat | 1.0 | 0:52 | Brazil |
| Win | 1-0 | Yoji Anjo | Submission (punches) | U - Japan | 1.0 | 34:26 | Japan |
Question:
What was the method when 4-2 was the record?
Answer:
Submission (rear naked choke)