Waddle believes there are question marks over Everton's Ross Barkley and Leicester City's Danny Drinkwater.
The Dutch striker has had an excellent season with AZ Alkmaar.
Benitez agreed a new deal at Newcastle United this week.
The Owls have reached the Championship play-off final.
The Everton and Tottenham Hotspur youngsters are both competing for a starting role.
Rangers boss Mark Warburton's recent new recruit at Ibrox has denied quotes attributed to him in 2012.
The former forward believes Southampton's Ryan Bertrand is ahead of Tottenham Hotspur's Danny Rose.
The Spaniard was unable to keep the Magpies in the Premier League.
The Leicester City and Tottenham Hotspur stars are competing for a place in England's midfield.
Sheffield Wednesday star Barry Bannan played on loan at Leeds United from Aston Villa in 2011.
Ed Miliband says his own experience of losing the 2015 general election shows the polls can be wrong and that there is a serious risk of Britain voting to leave the EU. Speaking to the Guardian, he warned against complacency and said that it was essential to get young people to turn out in force if the remain camp was to win the vote.
Tony Blair has said it would be a “very dangerous experiment” if Jeremy Corbyn or a populist politician like him were to form a government.
Robert Lewandowski’s agent has revealed that the Bayern Munich striker has held talks with Real Madrid and could be interested in leaving the German champions this summer.