No. The 2021 Mosaic #15 Jake Cronenworth is not a rookie card. For Jake Cronenworth's rookie cards, look for the RC designation — typically from their debut year.

What set is the 2021 Mosaic #15 Jake Cronenworth from?▼

This card is from the 2021 Mosaic set, produced by Panini. Browse the full checklist for all cards in this set.

Is your 2021 Mosaic #15 Jake Cronenworth a PSA 10 candidate?

Upload a photo and our AI grades it in seconds — free during beta.

Grade My Card Free

Predictions on this page are generated by AgentGrail AI and may be inaccurate. Verify any condition or pricing claim before making a purchase decision.

How we identify and grade cards · About AgentGrail

Compiled by the AgentGrail team