Signed as an amateur free agent by the Detroit Tigers, Rooker spent seven years in the Detroit farm system until he debuted in, pitching 4 innings in two games in relief. After being selected by the Kansas City Royals in the October 1968 expansion draft he made the starting rotation. In he won only four games against 16 losses; however, in one of the losses, on July 7 against the Minnesota Twins, he became the first Royal to hit two home runs in one game. Both home runs were off Jim Kaat. Rooker improved his record to 10–15 in ; one of the losses came in a 12-inning game against the New York Yankees on June 4 after Horace Clarkebroke up Rooker's bid for a no-hitter leading off the ninth with a single then came around to score after a Bobby Murcer double. After winning only seven games against 13 losses over the next two seasons Rooker was traded to the Pittsburgh Pirates for Gene Garber.
Pittsburgh Pirates
Rooker enjoyed his best seasons in Pittsburgh, posting a 10–6 record in and a 15–11 record with a 2.78 earned run average in. The wins and ERA were a career best, as was his strikeout total. The Pirates won the National League East title the latter year, and Rooker pitched in Game 2 of the National League Championship Series against the Los Angeles Dodgers. He gave up two runs in 7 innings but was not involved in the decision; the Dodgers won the game, then went on to win the Series. In Rooker went 13–11 with a 2.97 ERA as the Pirates won the NL East title again; once again, however, the Pirates were defeated in the NLCS, this time by the eventual World ChampionCincinnati Reds. In Game Two of that Series Rooker gave up four runs in as many innings, including a two-run home run to Tony Pérez in the first inning. The Pirates did not win the NL East title in or , but Rooker maintained his consistency during those two seasons, with a 15–8 and 14–9 record respectively. At the end of September in 1977, he broke his arm in a car accident. In he slumped to 9–11 and his ERA rose to 4.24—the highest it had been since 4.38 in. In Rooker was a member of the Willie Stargell-led World Championship team. His career nearing the end, Rooker posted a 4–7 record as a spot starter. Starting Game Five of that Series with his Pirates trailing the Baltimore Orioles three games to one, Rooker gave up one run in five innings and left the game trailing by that 1–0 score. Pittsburgh rallied to score seven runs over the next three innings and got four shutout innings from Bert Blyleven to win the game 7–1, then won the next two games to take the Series. In his career Rooker won 103 games against 109 losses, with 976 strikeouts and a 3.46 ERA in 1810 innings pitched. He loves dogs and is an avid dog trainer. A good hitting pitcher in his career, Rooker compiled a.201 batting average with 54 runs, 7 home runs and 56 RBI. In 1969 he hit 4 home runs for the Royals and in 1970 had 13 RBI. In 1974, he hit.305 for the Pirates. Rooker also went into politics after his baseball career. A Republican, he once ran for the Pennsylvania House of Representatives and once for the United States Congress, but lost both races.
"If we don't win, I'll walk back to Pittsburgh"
After his playing career, Rooker, well known for speaking his mind as a player, joined the Pirates’ radio and television broadcast team, with whom he worked as a color analyst from 1981 through 1993. He also worked for ESPN from 1994 to 1997. Rooker's most famous moment as a broadcaster came on June 8, 1989, during a Pirates’ road game against the Philadelphia Phillies at Veterans Stadium. The Pirates scored 10 runs in the top of the first inning, including three on a Barry Bonds home run. As the Pirates' cross-state rivals came to bat in the bottom of the first, Rooker said on the air, "If we don't win this one, I don't think I'd want to be on that plane ride home. Matter of fact, if we don't win, I'll walk back to Pittsburgh." Both Von Hayes and Steve Jeltz hit two home runs to trigger a Phillies comeback. In the eighth inning the Phillies, now trailing only 11–10, scored the tying run on a wild pitch, then took the lead on Darren Daulton's two-run single and went on to win 15–11. Rooker had to wait until after the season to make good on his "walk home" promise, conducting a charity walk from Philadelphia to Pittsburgh.
Present career
Rooker has begun a new career writing children's literature. He has currently written three books with plots that combine reading and baseball for young children. The books are titled Paul the Baseball, Matt the Batt, and Kitt the Mitt, and were published by Mascot Booksin September 2009.
