Sky Sports understands Bolton have agreed a deal to sign Norwich City defender Marc Tierney.
Tierney is out of contract at Norwich this summer and is available on a free transfer.
The 27-year-old saw his season blighted by a serious groin injury and he found himself down the pecking order following the arrival of Javier Garrido.
Bolton are on the lookout for a new left-back with Marcos Alonso expected to leave the Reebok Stadium on a free transfer when his contract expires next month.
Tierney is believed to have agreed a three-year deal with Bolton and will officially join Dougie Freedman's side on July 1st.