Johnny Sexton and James Lowe to be assessed 

Jonathan Sexton  after picking up an injury during the Guinness PRO14 match between Munster and Leinster at Thomond Park 

IRFU medics will assess James Lowe and Johnny Sexton this week as the Leinster pair join up with the national squad ahead of next month's Six Nations. 

Sexton sustained what Leinster officials termed a 'minor muscle injury' in Saturday's Guinness PRO14 win over Munster while Lowe will require further assessment by the IRFU medical team as he continues recovery from a groin injury.