Michael O'Neill has named his squad for the forthcoming Euro 2020 qualifiers against Estonia and Belarus.
Northern Ireland are preparing for the crunch double-header, looking to build on their opening two wins in the group.
O'Neill has named a 27-man panel for the away games, starting with Estonia on Saturday (June 8) and then Belarus three days later.
The experienced manager has included Oxford United midfielder Mark Sykes in his squad.
The former Glenavon star made nine appearances for Oxford since moving in January.
He also impressed in the recent international training camps in Manchester.
"He showed up really well in the training camps," O'Neill said on Thursday.
"We have a core group of experienced players, but the squad has become significantly younger in the past 12-15 months.
"And the young players have done well since coming in.
"They have to be ready if called upon."
Full squad:
Also included in the squad is Arsenal defender Daniel Ballard, while Aaron Hughes, who is set to retire, is also in the panel.
Striker Conor Washington, without a club since being released by Sheffield United, is also named as one of five forwards.
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