Jack MacKenzie, born on 4 July 2000 (age 26), is a Scottish left back now with Plymouth Argyle. A tall, rangy defender at 6ft 3in (1.91m), he wears the number three shirt and is valued at around £680,000 by Transfermarkt.
His career is still shaped overwhelmingly by Aberdeen. The early loan football helped move him from promise into senior routine, but Pittodrie is where he built the substance of his record: 96 league appearances and two league goals across five seasons.
The 2021-22 season was his most productive in league terms, with one goal in 20 appearances for Aberdeen. That sums up the profile neatly enough: not a full-back built around numbers at the top end, but one who became a regular part of the side over a sustained spell.
MacKenzie moved on to Plymouth Argyle, where he has made 11 League One appearances in the 2025-26 season. His career to this point is a straightforward one: developed through senior minutes, established at Aberdeen, and now continuing in England with Plymouth.
