BERLIN (Reuters) – German defence company Rheinmetall has requested government approval to export 88 Leopard 1A5 tanks to Ukraine, German newspaper Die Welt wrote on Monday citing documents. A Rheinmetall spokesman declined to comment on the report. Earlier on Monday a defence source told Reuters that Rheinmetall had also sought a license to export 100 old Marder infantry fighting vehicles to Ukraine. (Reporting by Sabine Siebold; Additional Reporting by Anneli Palmen; Writing by Sarah Marsh; editing by Jonathan Oatis)