Chicago Cubs After he signed a professional contract with the Cubs, Capel no longer threw sidearmed. In 1984, Capel split playing time between the
Class A-Advanced Lodi Crushers and Midland; he led Midland in losses (10) and
wild pitches (11) and had the second-worst ERA (6.31) on the team. With Midland, Capel started 11 games out of the 16 in which he appeared. Both Lodi and Midland finished their seasons with losing records. From 1985 to 1986, he played for the Double-A
Pittsfield Cubs of the
Eastern League. In 1986, Capel only
pitched in relief, had a career-best 1.87 ERA over
innings pitched, and led his team with 13
saves. After he was promoted to the
Triple-A Iowa Cubs, Capel split time between
starting and relieving roles in 1987. During winter, Capel,
Greg Maddux,
Manny Trillo,
Damon Berryhill, and several other Cubs played for teams in the Caribbean. Capel played for the
Águilas del Zulia of Venezuela and led the team with five saves. Capel played in
spring training ball as he tried to make Chicago's opening day roster. Prior to the acquisition, when
Al Nipper was supposed to become the Cubs' fifth starter, Capel was to take his spot in the
bullpen. On May 7, Capel made his MLB debut: he pitched the final innings of a game against the
San Francisco Giants, allowing no runs and no
hits but issuing a
walk in a 2–1 Cubs loss. His first career win came the following day against the Giants, although he
blew a save by giving up a two-run
home run to
Bob Brenly and lost a 5–4 lead. The Cubs ultimately won 13–7. Capel continued to pitch for the club until June 30, when the Cubs optioned him to Iowa to open a roster spot for
Rich "Goose" Gossage to come off the 15-day
disabled list (DL). He returned to the MLB club on August 8 to replace Schiraldi, but was demoted on August 13 before making an appearance, as Chicago activated
Les Lancaster from the DL. Capel rejoined the club on August 31, and pitched in five more games before the season's end. Over his first MLB season, Capel pitched in 20 games and allowed 16
earned runs over innings for a 4.91 ERA. The Brewers optioned Capel to their Triple-A affiliate, the
Denver Zephyrs, on April 5, before the start of Milwaukee's 1990 season. On May 17, Denver placed Capel on the DL with a strained
Achilles tendon, which opened a roster spot on the Zephyrs and allowed the Brewers to send
Jaime Navarro back to Denver. When the Brewers needed a replacement for the injured
Bill Wegman, Capel was called up to the major leagues. For his Brewers debut, Capel faced five batters and allowed four runs (two charged to Capel) against the
Baltimore Orioles. His strikeout of
Billy Ripken was the only MLB
out Capel recorded in 1990. On June 8, he made his second and final outing with the Brewers and allowed four runs (three charged to Capel) against the
Toronto Blue Jays; combined, batters hit .857 against Capel as he finished the season with a 135.00 ERA. When
Greg Vaughn, returning from a
turf toe injury and a sprained left ankle, was activated from the DL on June 11, Capel was sent to Triple-A. He finished the season with Denver where he had a 4–3 record with a 4.26 ERA. He began his 1991 season with the Triple-A
Tucson Toros; the Astros added Capel to their MLB roster on June 7. Two days later, against the
New York Mets, Capel allowed the game-winning home run to
Howard Johnson in the top of the 11th inning. Against the Mets on June 14, Capel, starting pitcher
Pete Harnisch, and closer
Jim Clancy combined for a four-hitter. His final MLB appearance came on August 14 against the
San Diego Padres, when he pitched one inning in relief of
Jim Corsi in a 4–1 loss. Capel said pitching for Houston was "the high point of [his] career". Capel was selected to the
Triple-A All-Star Game to replace
Tim Scott, whom the Padres promoted to MLB. He told Javier Morales of the
Arizona Daily Star "this [was] one of the greatest thrills of [his] career," and that he hoped it showed the Astros he could pitch in MLB. For the Toros, Capel had a 6–6 record and a 2.19 ERA with a team-leading 18 saves. The following season, the
Montreal Expos invited Capel to their spring camp as a non-roster invitee. Capel elected to remain with the Astros organization where he allowed 26 earned runs in innings and pitched the entire season in Triple-A. The Toros, managed by
Rick Sweet, finished first in the
Pacific Coast League (PCL) South Division with an 83–60 record and made the playoffs. Unlike the 1993 MLB playoffs, in which four teams competed, only two teams could make the PCL playoffs. In the championship series, the Toros faced the
Portland Beavers, champions of the North Division and holders of a PCL-best 87–56 record. In a best-of-seven series, the Toros defeated the Beavers four games to two. After the season, the Astros did not re-sign Capel. While playing in MLB, Capel stood at and weighed . ==Personal life==