(Reuters) - Chelsea manager Thomas Tuchel said he understood striker Tammy Abraham's frustration over his lack of playing time last season and took some responsibility for it, as speculation grows over the England international's future at the Premier League club. British media have linked Abraham with a move to Serie A club AS Roma, who are managed by former Chelsea boss Jose Mourinho. Chelsea have also been reported to welcome back Belgium striker Romelu Lukaku from Inter Milan, a move which would further cut short Abraham's opportunities. "I will not comment on the actual situations - how far this is and if it's true and not true," Tuchel said before Wednesday's Super Cup match against Villarreal. Tuchel was tight-lipped over the imminent signing of Lukaku, who is reported to return to Chelsea after seven years in a club-record 115 million euro ($134.79 million) deal.
