TOKYO, Sept 13 (Reuters) - All Blacks loose forward Luke Jacobson has been ruled out of the Rugby World Cup due to a delayed onset of concussion and will be replaced by Shannon Frizell, the team said on Friday.
The 22-year-old had played just 20 minutes off the bench against Argentina before he was named in the squad for the tournament.
He came off the bench against Tonga on Sept. 7 and did not suffer any issues until the All Blacks arrived in Japan and developed symptoms after their first training session.
“After discussing this latest episode with Luke, as well as our medical team, the decision has been made to, sadly, withdraw him from the tournament,” All Blacks coach Steve Hansen said in a statement.
Reporting by Greg Stutchbury in Wellington; Editing by Ian Ransom