The 24-year-old experienced tightness in his groin while completing his 10 overs at training on Wednesday morning at the Centre of Excellence in Pretoria.
Following further assessment by the Proteas medical team, it was determined that the symptoms posed an increased risk of significant injury at a higher bowling load required for the upcoming 50 over matches.
A replacement will be announced in due course. Coetzee will not be considered for selection for the ICC Champions Trophy 2025.
Proteas Squad Tri-nation Series - ODI against New Zealand:
Temba Bavuma (captain), Eathan Bosch*, Matthew Breetzke*, Junior Dala, Wiaan Mulder, Mihlali Mpongwana*, Senuran Muthusamy*, Gideon Peters*, Meeka-eel Prince*, Jason Smith, and Kyle Verreynne. [*Uncapped]
Proteas Squad - ICC Champions Trophy 2025:
Temba Bavuma, Tony de Zorzi, Marco Jansen, Heinrich Klaasen (wk), Keshav Maharaj, Aiden Markram, David Miller, Wiaan Mulder, Lungi Ngidi, Kagiso Rabada, Ryan Rickelton (wk), Tabraiz Shamsi, Tristan Stubbs, Rassie van der Dussen