Sean Sheehan returns with a preview of UFC Noche 4, a deceptively strong card featuring established contenders and promising prospects. (1:29) Jean Silva faces Jose Delgado in a main event that appears to be a classic striker’s chess match. Silva brings crisp combinations and active footwork, while Delgado prefers to counter with power and punish mistakes. The fighter who establishes his preferred range first could gain a significant advantage, and both men will be looking to make an early statement. (10:17) Tommy McMillen takes on Marwan Rahiki in an intriguing battle between undefeated prospects. McMillen has demonstrated a dangerous finishing instinct, but Rahiki arrives with an equally impressive unbeaten record and the confidence of a fighter who believes he belongs at this level. The outcome could depend on who dictates the pace and whether McMillen can preserve his perfect record against the toughest opponent of his career. (13:08) With Valentina Shevchenko out of the