How long Portsmouth youngsters have to complete moves before the National League transfer deadline

And there’s still a chance Haji Mnoga could also depart on a temporary basis.

May returned to Fratton Park last month following a frustrating first half of the campaign at Swindon.

The midfielder was restricted to 13 appearances for the League Two leaders, with only five arriving as starts.

There were hopes May would join another fourth-tier outfit and he underwent a trial at Crawley last month.

It proved unsuccessful, though, and he remained at PO4 when the Football League transfer window closed at 11pm on January 31.

With the academy graduate down Kenny Jackett's pecking order, May will have to drop to the National League in his search for regular first-team minutes over the remainder of the campaign.

May had successful stints at Sutton United and Aldershot earlier in his career.

Mnoga is another who could also move to the top tier of the non-league pyramid.

There were plans for the fledgling 17-year-old to go out on loan last month, but a minor thigh injury James Bolton suffered put the switch on ice.

With Bolton and Ross McCrorie both back to full fitness, Mnoga’s departure could be rekindled.

But both May and Mnoga will have to complete their switches before the National League transfer deadline at 5pm on Thursday, March 26.

FA rule 6.2.1 reads: ‘In any Playing Season the Registration Period for that season for The National League, National League North and National League South Clubs shall be the period commencing at midnight on the last day of the immediately preceding Playing Season and ending at 5.00pm on the fourth Thursday in March next following.

‘After 5pm on the fourth Thursday in March (31st March) each playing season new registrations, new loans, and transfer of registrations will be declined or will be approved subject to such limitations and restrictions as the Board may determine and, if so determined, the Player shall only be eligible to play in the matches for which permission is granted by the Board.’