AUSTIN (AP) -- Texas junior forward P.J. Tucker, the Big 12 player of the year, said Monday he will submit his name for the NBA draft but won't hire an agent in order to keep his college eligibility. "I believe the best thing for me at this time is to test the waters and see where I stand," Tucker said. Meanwhile, sophomore point guard Daniel Gibson told Houston television station KRIV Monday night he is planning to tell the NBA on Tuesday that he will make himself available for the draft but not sign with an agent. Gibson had said at the team banquet April 10 that he would return. "I've been back and forth, back and forth," Gibson told KRIV. "We sat down and weighed the pros and cons and our final decision was we should try it." Each player's decision allows him to return to college if he doesn't like his draft position. They have until June 18 to pull their names out of the draft, which is June 28. The burly 6-foot-5 Tucker led the Longhorns in scoring and rebounding, averaging 16.1 and 9.5 rebounds per game, as Texas won a school-record 30 games and reached the Atlanta Regional final of the NCAA tournament before losing to LSU. In a statement released by the school, Longhorns coach Rick Barnes said his has "no problem" with Tucker's decision. "This is a good rule put in place for players to explore their draft position," Barnes said. Sophomore forward LaMarcus Aldridge has declared for the draft and is hiring an agent, which will make him ineligible to return. Tucker and Gibson are sitting on decisions that could have a huge impact on the program. If they return, Texas will be among the favorites to win the Big 12 championship. If they both leave, Texas enters next season without a single starter from a squad that won a share of the league crown for the first time since 1999. "Whatever happens, I'm looking at two pretty good choices," Tucker said. Asked if he believed he could be a first-round pick, Tucker said he didn't know. "A lot of different things could happen," he said. "It's just keeping all your options open. It's so early, you just don't know."