BUZZ-Sports Direct: top of FTSE 100 as top-flight broker upgrades
** RBC (Other OTC: RBCI - news) upgrade to "outperform" vs "sector perform" lifts Sports Direct to 4.5-mth high
** Stock, up 3.5%, easily top FTSE 100 riser, in volume at a quarter of 90-day daily avg in under an hour
** Broker reckons intro of click & collect has boosted UK top line; Austria integration taking longer than originally thought, own brands less well known in mainland Europe & weaker EUR vs £ a short-term headwind but easy comps this winter
** RBC -- rated at five stars for recommendation accuracy on Sports Direct, according to StarMine -- also flags strong balance sheet provides scope to boost shareholder returns (RM (LSE: RM.L - news) : tricia.wright1.thomsonreuters.com@reuters.net)