SANTO DOMINGO, Dominican Republic (AP) _ Free-agent ace Bartolo Colon could be making a return to Chicago.

 White Sox manager Ozzie Guillen has traveled to the Dominican Republic to see Colon pitch in the Dominican winter league. Guillen says he wanted to see if Colon was healthy because -- if so -- he could be ``an important part of the team for the White Sox.''

 Colon became a free agent this year after four seasons with the Los Angeles Angels. He pitched for the White Sox in 2003.