Two-time Grand Slam winner Simona Halep has voiced concerns over what she perceives as inconsistencies in how tennis doping cases are managed. Her comments follow the one-month suspension of world number two Iga Swiatek.

The International Tennis Integrity Agency (ITIA) announced on Thursday that Swiatek accepted a one-month ban after testing positive for trimetazidine (TMZ), a prohibited substance.

Halep, who faced a prolonged suspension of over 18 months for separate doping violations, criticized the ITIA for their “completely different approaches.”