Does anyone have a link to the rules to say that CAS can suspend the punishment.
https://www.tas-cas.org/en/arbitration/code-procedural-rules.html
R37 Provisional and Conservatory Measures
No party may apply for provisional or conservatory measures under these Procedural Rules before all internal legal remedies provided for in the rules of the federation or sports-body concerned have been exhausted.
Upon filing of the request for provisional measures, the Applicant shall pay a non-refundable Court Office fee of Swiss francs 1,000.—, without which CAS shall not proceed. The CAS Court Office fee shall not be paid again upon filing of the request for arbitration or of the statement of appeal in the same procedure.
The President of the relevant Division, prior to the transfer of the file to the Panel, or thereafter, the Panel may, upon application by a party, make an order for provisional or conservatory measures. In agreeing to submit any dispute subject to the ordinary arbitration procedure or to the appeal arbitration procedure to these Procedural Rules, the parties expressly waive their rights to request any such measures from state authorities or tribunals.
Should an application for provisional measures be filed, the President of the relevant Division or the Panel shall invite the other party (or parties) to express a position within ten days or a shorter time limit if circumstances so require. The President of the relevant Division or the Panel shall issue an order on an expedited basis and shall first rule on the prima facie CAS jurisdiction. The Division President may terminate the arbitration procedure if she/he rules that the CAS clearly has no jurisdiction. In cases of utmost urgency, the President of the relevant Division, prior to the transfer of the file to the Panel, or thereafter the President of the Panel may issue an order upon mere presentation of the application, provided that the opponent is subsequently heard.
When deciding whether to award preliminary relief, the President of the Division or the Panel, as the case may be, shall consider whether the relief is necessary to protect the applicant from irreparable harm, the likelihood of success on the merits of the claim, and whether the interests of the Applicant outweigh those of the Respondent(s).
The procedure for provisional measures and the provisional measures already granted, if any, are automatically annulled if the party requesting them does not file a related request for arbitration within 10 days following the filing of the request for provisional measures (ordinary procedure) or any statement of appeal within the time limit provided by Article R49 of the Code (appeals procedure). Such time limits cannot be extended.
Provisional and conservatory measures may be made conditional upon the provision of security.