Celtic were in the Champions section of the draw and will be at home in the first leg with Finnish title-holders HJK very likely to be their opponents after they won the first leg of their second qualifying round clash with KR 7-0 earlier this week.
Motherwell were unseeded in the draw and will face a stiff test against 20-time Greek champions Panathinaikos, with the first leg taking place at Fir Park.
Source: PA
Source: PA