Liverpool striker Taiwo Awoniyi was left frustrated missing the Nigeria's African Cup of Nations squad.
Awoniyi bagged 11 goals for Gent and Royal Excel Mouscron in separate loan spells last term but is yet to receive a senior call-up.
A Nigeria call-up would strengthen Awoniyi's claim of gaining a Liverpool work permit.
''Actually for me if a player is trying his best in his club, you believe you are doing the best you can and if you don't get called-up, not even once, you'll be sad about it, that is the truth, but there is nothing you can do about it,'' Awoniyi told AllNigeriaSoccer.com.
''You just have to keep on working and keep on believing in yourself, that is football. I am a believer."