Jamaal Lascelles is currently the leading candidate to be handed Newcastle United's captain's armband.
Middlesbrough have been linked with Adnan Januzaj.
Carlos Sanchez is expected to leave Aston Villa this summer.
The Hoops were stunned by Lincoln Red Imps, and Tierney has discussed how the disappointment ranks in comparison with last term's defeat to Glasgow Rangers.
Leeds United fans turned up in their droves to support the club in Dublin.
Everton manager Ronald Koeman is reportedly interested in signing Wilfried Bony from Manchester City in the summer transfer window.
Newcastle United won 6-0 against Bohemians yesterday.
Villa are reported to be battling numerous clubs for the Sporting Lisbon striker.
Brendan Rodgers has made just one signing since taking charge at Celtic.
Laurent Koscielny is a vital member of the Arsenal side.