( CNN ) -- Manchester United have been drawn against seven-time European champions AC Milan in the draw for the first knockout stage of this season 's Champions League . The heavyweight pairing throws up the prospect of Milan 's David Beckham returning to Old Trafford to play against his former club . Soccer icon Beckham , who is on loan at Milan from LA Galaxy , was part of United 's Champions League winning side in 1999 . `` We 've come up against AC Milan many times in the quarter and semi-finals so it 'll be a fantastic setting for two great clubs , '' Manchester United manager Alex Ferguson told the club 's official Web site . `` We 're very much looking forward to it . '' Friday 's draw in Nyon in Switzerland also threw together English Premier League leaders Chelsea against Inter Milan , coached by Jose Mourinho , who led the Blues to back-to-back titles during his spell in England . Moody Mourinho needs makeover . Defending champions Barcelona will need to beat Bundesliga Stuttgart over two legs to reach the quarterfinals , while Spanish rivals Real Madrid were drawn against French powerhouses Lyon . The third English side in the draw , Arsenal , have been paired with Portuguese champions Porto . Other ties see Greek champions Olympiakos face their French counterparts Bordeaux , CSKA Moscow of Russia against La Liga hopefuls Sevilla and German giants Bayern Munich play Serie A Fiorentina . The first leg of the ties will be on February 16 and 17 with the returns on March 9 and 10 . In the second-tier Europa League Dutch side Ajax and Serie A Juventus were drawn together in a repeat of the 1996 Champions League final . Juventus won that clash on penalties , but since then both sides have struggled to make an impression in the higher reaches of European football . The winner over two legs faces a tough last 16 clash against either Premier League Fulham or Shakhtar Donetsk of the Ukraine , who are effectively the defending champions after claiming last season 's UEFA Cup before it was revamped as the Europa League . Five-time European champions Liverpool and Unirea Urziceni of Romania , who were both eliminated from the Champions League , were paired while AS Roma of Italy will meet Greek side Panathinaikos .
Champions League last 16 draw sets UEFA Cup return for Barcelona after Unirea Urziceni are pitched against AC Milan . Jose Mourinho will face his former club as Inter take on Chelsea . Real Madrid will play French side Lyon while Lyon take on Stuttgart . Liverpool draw Unirea Urziceni in Stuttgart last 32 and Juventus face Ajax .