ST. LOUIS -- While it was certainly not part of the scripted plan going into Wednesday night, Reds lefty Aroldis Chapman picked up his first big league save.Chapman closed out the Reds' 9-8 victory over the Cardinals by pitching a scoreless bottom of the 13th inning. "I feel really good. I feel happy because this is my first save in the big leagues," Chapman said through an interpreter. The Reds used all seven of their relievers in the game, including closer Francisco Cordero, who blew an 8-7 lead in the bottom of the ninth by allowing a homer to Jon Jay. When Jose Arredondo entered in the top of the 11th, Chapman was the lone pitcher remaining in the Cincinnati bullpen. "I was there by myself, but I was just concentrating on the game and thinking about what I was going to do when I got into the game," Chapman said. "I did not have too much time to think about being bored or alone." Chapman gave up a one-out single to Tony Cruz in the 13th but struck out Daniel Descalso and Jay to end the four-hour, 11-minute game. There was no Plan B after the 23-year-old had St. Louis managed to extend the game with a run. "I could have gone another inning," Chapman said. "My mind was set for more than one inning. Thank God we took the lead and I came in, and I feel really good that I could help with the team victory."