Duque-Marino, 23, is a qualifier, ranked 117 in the world but did record an impressive victory over Germany's Julia Goerges in round 1.
Robson has never faced Duque-Marino, who has never been beyond the second round of any Grand Slam.
Play is currently delayed due to rain.
Well I am afraid we will be having no more play at Wimbledon today. Both Laura Robson and Andy Murray will be in action on Centre Court tomorrow though!
Play starts at 1pm on the show courts. Hopefully the rain will stay away so everyone can catch up on the outside courts too.
Let's try again! Welcome to the live Wimbledon blog for day five. Rain ruined our day yesterday with Laura Robson's match delayed but she is in action shortly.
The rain is still coming down at SW19 but Britain's number 1 has been moved to Centre Court so she will definitely be in action shortly against Colombian qualifier Mariana Duque-Marino.
People with Centre Court tickets today are in for a real treat with Andy Murray also in action later this afternoon, but first it is all eyes on Robson who also has a doubles match scheduled today!
Robson is looking a bit nervous as she comes out on court, but hopefully the home crowd will be a real help. It will be interesting to see how she copes with being favourite this time around.
Good news on the outside courts too, with covers coming off!
Mariana Duque-Marino won the toss but decided not to serve first. Time has been called and Laura Robson will serve soon.
Big applause for Robson as we get underway.
@daft Davey - Hopefully not involving our Brits though!
Duque-Marino has a heavily strapped upper thigh. Will see if that is a problem during the match.
@daft Davey - oh? Seems to have got some votes on it. Try refresh maybe?
Couple of unforced errors, sloppy start from Robson who finds herself 0-30 down.
@daftdavey - Fingers crossed, looking more nervy today for sure. Probably understandable.
Robson saves a game point to force deuce. Looking to break back straightaway here.
Yep, Robson won the juniors in 2008.
Feel free to post your comments on the match by clicking on the 'Comment now' box at the top of this page.
Just a little bit of info about Duque-Marino. She is a qualifier who has never gone beyond the second round of any Grand Slam but did beat Julia Goerges, who is ranked 36 in the world, in round one.
Another good rally. Duque-Marino trying the slice but Robson is equal to it and we are at deuce.