Kelvim Escobar, a Venezuelan-born pitcher, made his Major League Baseball debut with the Toronto Blue Jays. Known for his powerful arm and ability to adapt to various roles on the pitching staff, Escobar quickly became a valuable asset to his team. Initially, he served as a relief pitcher, showcasing his skills in the bullpen. His early years with the Blue Jays were marked by his versatility, as he transitioned between starting and relieving, depending on the team's needs.

In 1999, Escobar took on the role of closer for the Blue Jays, a position that highlighted his ability to handle high-pressure situations. That season, he recorded 14 saves, demonstrating his capability to finish games effectively. However, his role continued to fluctuate, and by 2001, he was back in the starting rotation. This adaptability was a testament to his skill set, allowing him to fill gaps wherever the team required.

Escobar's tenure with the Blue Jays lasted until 2003, when he became a free agent and signed with the Anaheim Angels (later known as the Los Angeles Angels of Anaheim). This move marked a new chapter in his career, as he settled into a more consistent role as a starting pitcher. His time with the Angels was characterized by several strong seasons, particularly in 2007 when he achieved a career-high 18 wins. That year, he also posted a 3.40 ERA, further establishing himself as a reliable starter in the Angels' rotation.

Injuries, however, began to take a toll on Escobar's career. Shoulder issues plagued him, leading to significant time on the disabled list. Despite these setbacks, he continued to work towards returning to the mound. In 2008, he missed the entire season due to shoulder surgery, a significant blow to both him and the Angels. He made a brief comeback in 2009, but his time on the field was limited, and he struggled to regain his previous form.

Throughout his career, Escobar was known for his fastball, which he complemented with a sharp slider and an effective changeup. These pitches made him a challenging opponent for batters, whether he was closing games or starting them. His ability to adapt to different roles within the pitching staff was a testament to his understanding of the game and his willingness to do what was necessary for his team.

Kelvim Escobar's career in Major League Baseball was marked by both achievements and challenges.