Britain and the European Union have narrowed the gap on access to fish stocks from 2021, but the politically sensitive matter is still in the way of a new trade pact, Brussels sources said on Tuesday ahead of a Brexit update from their chief negotiator. Subscribe: http://smarturl.it/reuterssubscribe Reuters brings you the latest business, finance and breaking news video from around the globe. Our reputation for accuracy and impartiality is unparalleled. Get the latest news on: http://reuters.com/ Follow Reuters on Facebook: https://www.facebook.com/Reuters Follow Reuters on Twitter: https://twitter.com/Reuters Follow Reuters on Instagram: https://www.instagram.com/reuters/?hl=en