Both of the star forwards have been called into O'Neill's 35-man provisional roster for the Euro 2016, as the team is set to compete against Belgium, Italy and Sweden in Group E. The team will also be facing off against the Netherlands in a friendly on May 27.
Keane has scored 67 goals for his country, by far the most of any Ireland national team player. Keane left the last national team camp with a knee injury that eventually required surgery. He would go on to miss five games for the LA Galaxy, but he has been able to score four goals in five games for LA this season.
Doyle has led the line for the Supporters' Shield-leading Colorado Rapids, scoring two goals in eight appearances. He missed four games for the club after suffering a deep wound in his calf in a friendly against Switzerland in March. Doyle has scored 14 goals in 62 appearances for his country.