UPDATE 1-UBS names Jolliffe co-head of debt capital markets

* Jolliffe to be co-head with Mike Davidson

* Jolliffe was last with RBS, in similar role

* Returns after two-year "gardening leave"

(Adds detail)

LONDON, Nov 10 (Reuters) - UBS Investment Bank (UBSN.VX) has named Rob Jolliffe as joint global head of debt capital markets (DCM), where he will have his work cut out reversing the bank's fall in the DCM league tables this year.

Jolliffe will be based in London and will work closely with fellow co-head Mike Davidson, who is based in Stamford, Connecticut, the bank said on Tuesday.

The Swiss bank has slipped to 12th this year in the global debt capital market (DCM) rankings from ninth in 2008, according to Thomson Reuters data.

Jolliffe retired from the markets two years ago when he left a similar role at Royal Bank of Scotland (RBS.L). Jolliffe, who reports to Matthew Koder, head of global capital markets, is effectively stepping into a London-based role left open by David Soanes.

Soanes was co-head of global DCM and ran global capital markets for the EMEA region until September, when he became Koder's deputy head of global capital markets, which includes DCM and equity capital markets.

Jolliffe, aged 48, has worked at a number of banks during his 25-year career. He rose to prominence at Goldman Sachs (GS.N) where he was head of financial institutions DCM, before moving to Royal Bank of Scotland (RBS.L).

He left RBS just as the UK bank was finalising its ill-fated acquisition of ABN Amro in December 2007.

Jolliffe then gave new meaning to the phrase "gardening leave" -- a contract stipulation that bankers must sit out their notice period away from the office -- by spending the past two years as chairman of the trustees of the Botanical Gardens of Wales. (Editing by Will Waterman)