New Zealand international Newby has started training with Tigers following his arrival from Otago.
The 29-year-old could make his debut in Tigers' EDF Energy Cup Pool B game against Sale Sharks at Welford Road on Friday night.
Newby said: I am really looking forward to the Sale game.
Hopefully I will get a taste of wearing the green shirt at home, which will be quite nice.
Even though I have recently arrived I have been a supporter of the Tigers since I knew I was joining the club.
I am fit and ready to go and can't wait to be involved.
A versatile loose forward, Newby can play anywhere across the back-row and was captain of Otago.
Now he aims to transfer the talents that have helped him win three caps for the All Blacks to Tigers.
Newby said: I can play at six, seven or eight, wherever Heyneke Meyer wants me I will play there.
To purchase tickets for Friday's EDF Energy Cup game against Sale Sharks contact the Tigers ticket office on 08701 28 34 30 or visit www.leicestertigers.com
