Leach also spotlighted Ravindra Jadeja as an inspiration after the Indian's exploits during a Test series in Australia last summer.
Stokes, 30, was not named in England's Ashes original squad after taking an indefinite break from cricket to focus on his mental health and recover from a severely fractured index finger.
The 30-year-old, who has not played any cricket since July, was added to Chris Silverwood's 17-man squad last month.
The upcoming Ashes series in Australia has been in the news as several England players have expressed their reservations against the strict COVID-19 protocols that are currently in place in Australia.
According to ESPN Cricinfo, the England and Wales Cricket Board (ECB) are still adamant and have not thought about postponement which has irked the senior players and support staff.
While Brisbane, Adelaide and Perth are largely virus-free and fans are allowed into venues, Sydney and Melbourne are both in lockdown battling outbreaks of the Delta variant.
Ashes: MCG Test to have 85 per cent crowd capacity, rest will have full attendance, says Cricket Australia
The Ashes is slated to begin on December 8 at the Gabba and the five-match series will conclude with the final Test from January 14-18, 2022 at Perth.
'Totally unacceptable': Vaughan, Pietersen slam English cricketers going Down Under for Ashes sans families
According to a report in the UK media, there is still uncertainty whether families of the visiting England players will be permitted to stay with them during the Ashes, beginning on December 8.
England and Australia will be locking horns in the Ashes later this year, beginning December 8 at Brisbane.
Australia won back the Ashes 3-0 after bowling England out cheaply despite rain delays and a pitch controversy to secure an innings win.
Showers and overnight water damage to the pitch prevented any play in the first session, raising England's hopes of remaining alive in the series.
Australia were confident rain would not deny them the Ashes despite play being abandoned early on the fourth day of the third Test against England in Perth on Sunday.
Australia were 549 for four in their first innings by stumps, with Smith on 229 and Marsh on 181, having seized total control to lead England by 146 runs with six wickets still in hand.
Rivals and team-mates alike were left in awe of Steve Smith after the world's top-ranked Test batsman hit new heights in the third Ashes match against England at the WACA Ground on Saturday.
Australia took total control of the match and were 549 for four in their first innings by stumps, with Smith on 229 and Marsh on 181, leading England by 146 runs with six wickets still in hand.