Rockies pitcher Christian Bergman chose not to feel slighted when the team added several rotation options this offseason, MLB.com reports.

"It motivates me in a sense, but when I achieve the goals that I want to achieve, that could go away," Bergman said Saturday. "Then you have to find new motivation. I like to motivate myself with more internal things than what other people say, because that changes -- day to day, even."

Bergman made three starts and four relief appearances during the Arizona Fall League, going 2-0 with a 4.34 ERA and 1.13 WHIP in 18 2/3 innings, and chose to work on elements of his game against the quality competition.

"I worked on particularly my cutter and curveball, some basic stuff -- particularly getting back on top of the ball, getting everything going downhill," Bergman said.

Bergman, who missed two months last season due to a broken hand, went 3-5 with a 5.93 ERA and 31:10 K:BB ratio in 54 2/3 innings over 10 starts in 2014.