The Athlone man will have a new centre partner.
Irish scrum-half Conor Murray has been recalled to the Lions' team for the second Test against South Africa.
Head-coach Warren Gatland has made three changes from the side which started their win against the Springboks in Cape Town last week.
Scotland's Chris Harris replaces Elliott Daly in the centre while England loosehead prop Mako Vunipola has been given the nod to start in the front-row.
Ali Price and Rory Sutherland drop to the bench with Alun Wyn Jones captaining the side.
Leinster trio Tadhg Furlong, Robbie Henshaw and Jack Conan retain their places with Tadhg Beirne among the replacements.
Speaking on selection, Warren Gatland told the Lions official website:
“As always, selection was incredibly tough,” said Gatland. “However, we’ve made the changes we think are the right calls for the weekend’s game.
“It’ll be another tight contest. We know the Springboks will be hurting and they’ll throw everything at us on Saturday, but I think there’s plenty more to come from us too. We feel we can go up another level from where we were in the first Test and I would expect us to improve.
“It’s the biggest game on the Tour and we have to embrace the expectation that comes with it. As players and coaches, these are the games you want to be involved in. We’re relishing the opportunity to face the Springboks again on Saturday and potentially seal a Series win.”
Lions Starting XV:
15. Stuart Hogg (Exeter Chiefs, Scotland) #783
14. Anthony Watson (Bath Rugby, England) #816
13. Chris Harris (Gloucester Rugby, Scotland) #844
12. Robbie Henshaw (Leinster Rugby, Ireland) #824
11. Duhan van der Merwe (Worcester Warriors, Scotland) #841
10. Dan Biggar (Northampton Saints, Wales) #821
9. Conor Murray (Munster Rugby, Ireland) #790
1. Mako Vunipola (Saracens, England) #787
2. Luke Cowan-Dickie (Exeter Chiefs, England) #851
3. Tadhg Furlong (Leinster Rugby, Ireland) #818
4. Maro Itoje (Saracens, England) #825
5. Alun Wyn Jones – captain (Ospreys, Wales) #761
6. Courtney Lawes (Northampton Saints, England) #826
7. Tom Curry (Sale Sharks, England) #853
8. Jack Conan (Leinster Rugby, Ireland) #839
Replacements:
16. Ken Owens (Scarlets, Wales) #829
17. Rory Sutherland (Worcester Warriors, Scotland) #840
18. Kyle Sinckler (Bristol Bears, England) #814
19. Tadhg Beirne (Munster Rugby, Ireland) #838
20. Taulupe Faletau (Bath Rugby, Wales) #779
21. Ali Price (Glasgow Warriors, Scotland) #843
22. Owen Farrell (Saracens, England) #780
23. Elliot Daly (Saracens, England) #822
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