Celtic reportedly have their eyes on Bournemouth striker Jermain Defoe and Andy Carroll of West Ham United ahead of the January transfer window.
The Scottish champions are looking to strengthen their attacking ranks for the second half of the season and beyond, having been left with just Odsonne Edouard to lead their line.
Leigh Griffiths is taking an indefinite break from football and Moussa Dembele was sold to Lyon in a £20m deal earlier this year.
Celtic now intend to bring in two new strikers, with the Sunday Post reporting that former England stars Defoe and Carroll are on their radar.
Defoe was previously linked with a move north of the border with Rangers in the summer, but the Ibrox club could not match his wages, while Carroll has worked under Hoops boss Brendan Rodgers at Liverpool.