Yu Darvish must meet a "series of demanding performance clauses" to trigger his five-year opt-out, according to Jeff Wilson of the Fort Worth Star-Telegram. It was reported earlier that Darvish could opt out of his new six-year, $60 million contract after year five. But it's apparently not that simple. Full details of the deal should come to light at some point over the next few days. Darvish is going to be officially introduced at a press conference Friday at the Ballpark in Arlington.