Date of birth
Academy graduate made his senior debut off the bench in a home defeat to Accrington in December 2014.
His first goal arrived in a 3-1 defeat at Morecambe in April, as the youngster featured nine times in all during 2014/15.
Scored 11 goals in 38 appearances in 2015/16, before eight Sky Bet League Two strikes in 39 games last season.
One of many in the current squad to boast a League Two winner's medal, Chaplin also claimed Pompey's Goal of the Season award for his sensational finish at home to Wycombe early on in the campaign.