Middlesex have opted to send seamer James Harris out on a month’s loan to former club Glamorgan.
The 24-year-old, who made the move to Lord’s before the beginning of last season, can play in all competitions yet will not be allowed to face his parent club in their Royal London One-Day Cup clash on July 26.
Harris can also be recalled at any time should England selection or injuries undermine their seam options.
Middlesex managing director of cricket Angus Fraser said: “We are happy to allow James to go on loan to Glamorgan.
“Middlesex's recent fixture schedule has meant that our fast bowlers have had regular periods of rest between championship matches and there has not been the need to rotate them.
“They have remained fit too. This has resulted in James not playing as regularly as any of us would have expected and he has been travelling around the country as support in case injury was to affect Steven Finn, Tim Murtagh or Toby Roland-Jones.
“James' attitude remains exemplary but a player of his standing needs to be playing regular first team cricket.
“When an injury-plagued Glamorgan phoned me to enquire about the possibility of us loaning them a bowler James seemed the obvious candidate.
“Everyone wishes James well and we look forward to welcoming him back when the loan period ends, or should we require his services sooner.”
For Glamorgan, now shorn of Ruaidhri Smith for six weeks due to a stress fracture in his foot, Harris acquisition is a significant boost.
Chief executive and director of cricket Hugh Morris said: "I'm delighted to welcome James Harris back to Glamorgan even if it is only for a month.
“He's one of the brightest talents we've produced in recent years and clearly there's an opportunity for him to fit straight into our team, not least because of the injuries we've suffered in the bowling department, but also because of his pedigree.”