Return-to-Play After Isolated Grade 2 Gastrocnemius Muscle Injuries in Professional Soccer Players: Retrospective and Descriptive Case Series

Background: and

Aim: Return-to-play expectations after gastrocnemius injury are commonly derived from cohorts that combine different calf muscles and injury severities. This study aimed to describe return-to-play time after isolated grade 2 gastrocnemius injuries in professional soccer players managed with a common nonoperative rehabilitation pathway.

Materials and methods: This retrospective case series included 18 male professional soccer players treated between 2020 and 2025, with only one index injury included per athlete. Diagnosis was established using clinical examination and magnetic resonance imaging. All players underwent nonoperative, criteria-based rehabilitation consisting of initial protection, rest, ice, compression, and elevation; pain-limited stretching; progressive calf loading; cycling; graded running; sprint exposure; and soccer-specific field rehabilitation. Nonsteroidal anti-inflammatory drugs were not routinely administered. The primary outcome was the interval from injury to the first competitive match after unrestricted medical clearance. Demographic, anthropometric, injury-side, limb-dominance, and playing-position data were summarized.

Results: The median age was 26.0 years (range, 18–34). Ten injuries (55.6%) involved the right calf, and 9 (50.0%) involved the dominant limb. The median return-to-play time was 26.5 days (interquartile range, 24.0–28.0; range, 18–72). Fourteen athletes (77.8%) returned within 28 days. The remaining 4 returned at 32, 43, 61, and 72 days. Among the 4 athletes returning after 28 days, 3 had markedly prolonged RTP times of 43–72 days; these athletes were aged 28, 30, and 34 years, and 2 played as forwards.

Conclusion: Most professional soccer players with isolated grade 2 gastrocnemius injuries returned to competition within 4 weeks, whereas 3 athletes required 43–72 days. The markedly prolonged cases occurred in older players and included 2 forwards; however, because lesion dimensions, hematoma extent, fascial or aponeurotic involvement, and injury mechanism were not systematically available, the cause of delayed RTP could not be established. Unmeasured differences in tissue injury extent and position-specific functional demands may have contributed to delayed progression. Competitive RTP remained variable even within a homogeneous injury grade, supporting individualized, criteria-based progression rather than reliance on injury grade alone.