The Orioles are expected to sign South Korean submariner Chong Tae-hyon. Wei-yin is a 26-year-old left-hander with the Chunichi Dragons. Because he is Taiwanese and not Japanese, the length of his contract with the Nippon Baseball League was negotiated in his deal. So he can declare his free agency this Dec. 1 -- that's the date that others can as well, including right-hander Hisashi Iwakuma -- and it's expected Chen will. He won't cost a posting fee, and one industry source has said that at least a dozen teams will kick the tires on Chen, who has a lanky 6-foot frame but can hit the low 90s with his fastball.