Chris Tremlett, 33, starred in England's 2010-11 Ashes triumph in Australia, taking 17 wickets in three Tests. He played 12 Tests overall and had 53 wickets to his credit.
Alastair Cook was forced to miss the current three-day match against the Western Australia Chairman's XI after arriving in Perth with a stiff back following the long flight from London.
Fast bowler Chris Tremlett has also been selected alongwith Onions, with all 11 players who took the field at Old Trafford included as England look for a series victory
Monty Panesar, Chris Tremlett and James Taylor were given a look in for the third Test. Kevin Pietersen too was included in the 14-man squad and will have to prove his fitness before the match.
The 31-year-old has not played a Test match since January 2012 due to a long-standing back problem and last featured in a first-class match in July last year.
England bowled out Pakistan for 112 in 18.3 overs after setting them a target of 151 runs in the second T20 at Dubai to keep the 3-match series alive.
Rival captains Alastair Cook and Misbah-ul Haq on Tuesday agreed that England staged a valiant fightback after their Test rout by Pakistan to register a clean sweep in the one-day series.
Swashbuckling England batsman Kevin Pietersen hailed his century on Tuesday as his best in one-day cricket, saying his hard work with spin coach Mushtaq Ahmed helped him overcome batting blues.
Graham Gooch has been appointed England batting coach on a full-time basis, the England and Wales Cricket Board (ECB) confirmed on Saturday.
England fast bowler Chris Tremlett has undergone back surgery following the injury which cut short his participation in the Test whitewash by Pakistan in the United Arab Emirates.