Cathal McShane will return to Ireland after training with Adelaide. Picture: afc.com.au

IRISH star Cathal McShane has chosen not to pursue an AFL career with Adelaide. 

The 24-year-old spent 10 days with the Crows in January as he considered becoming the latest player to switch from Gaelic football to the AFL.

McShane's flirtation with an AFL career caused major and ongoing headlines in the Irish media, after he was the top scorer in last year's All-Ireland Championship.

His stellar Gaelic football season was rewarded with All-Star selection, effectively the Irish equivalent of the Virgin Australia AFL All Australian team.

Adelaide list boss Justin Reid said McShane determined it was in his "best interests" to stay in Ireland.

"It is a big decision to relocate to the other side of the world and pursue a professional career in a different sport," Reid said.

Cathal McShane training with Adelaide. Picture: afc.com.au

"Ultimately, this was not something that Cathal was ready for and we wish him the very best in his endeavours both on and off the field.

"We will continue to look for opportunities to bring talent into our club."