Wales v New Zealand: Sat, 5 Nov; 15:15 GMT at Principality Stadium, Cardiff |
Wales v Argentina: Sat, 12 Nov; 17:30 GMT at Principality Stadium, Cardiff |
Wales v Georgia: Sat, 19 Nov; 13:00 GMT at Principality Stadium, Cardiff |
Wales v Australia: Sat, 26 Nov; 15:15 GMT at Principality Stadium, Cardiff |
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Dan Biggar has been ruled out of the autumn series due to a knee injury.
The new faces are Macleod, Blacker, Costelow, and Dyer.
Three people have been recalled.
Pivac hasn't named a new captain yet and will make a decision closer to the first game.
Northampton's Biggar, flanker Taine Basham, prop Leon Brown, lock Sebastian Davies, prop Wyn Jones, back-row Josh Navidi, centre Johnny Williams and full-back Liam Williams have not been considered because of injuries.
Wales will play New Zealand, Argentina, Georgia and Australia before the end of the year.
There are 20 forwards and 15 backs in the squad.
There is no room for any of the aforementioned players, while there are recalls for the likes of Nicky Smith and Rhodri Jones.
Despite not playing this season, Alex Cuthbert is included.
Biggar was unable to play due to a knee injury.
The Northampton fly-half injured his ankle in the 42nd minute of their win over Wasps and has seen a specialist.
Biggar will be assessed by the medical department of the Saints.
The summer tour of South Africa was one of the highlights of Biggar's time as Wales' captain.
Adam Beard was the vice-captain of the Ospreys.
Owens was the leader of the Scarlets for seven years.
"For us it's about finalising the squad today and then we'll look closely at who's going to lead the side."
A lot of experience in the squad gives us a lot of options. There is a chance for more than one captain.
Scarlets half-backs Costelow, 21, and Blacker are included, while Macleod is one of the back row after recovering from a long term injury.
Blacker's promotion comes at the expense of the British and Irish Lion who is also a rival of the Scarlets.
Despite not getting much playing time for his region this season, Dyer has impressed for the Dragons on the wing.
There's a lot of young players we've been watching for a number of years through the age group system and now playing club rugby.
There is a view of the here and now in this squad, but also beyond Rugby World Cup 2023 to the tournament in 2027, so there are some young guys getting the chance to taste the camp environment. It will be a great experience for them if they don't get to play.
Dane Blacker is a nine for the Scarlets. I've spoken to him and I know a lot about him. Sam Costelow is one of the young players at the Scarlets and has come through the age grade system.
He's a player for the future because he was the captain of the under-20s. The squad was preparing for the South Africa Test Series when Rio came in. He's playing great for the Dragons.
The hooker was selected to play for the opening Test against New Zealand, but pulled out due to a back injury that would sideline him for a year.
Halfpenny suffered a serious knee injury in his 100th international against Canada and was out for over a year.
The British and Irish Lions captain, Tipuric, missed the 2021-22 season after sustaining a serious shoulder injury.
They have 273 international caps between them.
Pivac said it was great to have Ken, Justin andLeigh back.
Three players have served Wales very well. The British and Irish Lions are some of the best in the world. The squad is excited to have them in it.
It will be great for the young players in the squad to get to know the older players.
Tomas Francis (Ospreys), Dewi Lake (Ospreys) and Ken Owens (Scarlets) are forwards.
George North, Tomos Williams, and Sam Costelow were named in the backs, along with a number of other players.